./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:49:49,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:49:49,896 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:49:49,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:49:49,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:49:49,965 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:49:49,968 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:49:49,969 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:49:49,969 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:49:49,970 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:49:49,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:49:49,971 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:49:49,972 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:49:49,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:49:49,972 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:49:49,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:49:49,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:49:49,973 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:49:49,973 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:49:49,973 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:49:49,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:49:49,974 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:49:49,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:49:49,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:49:49,974 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:49:49,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:49:49,974 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:49:49,975 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:49:49,975 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:49:49,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:49:49,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:49:49,975 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:49:49,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:49:49,976 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:49:49,976 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:49:49,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:49:49,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:49:49,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:49:49,977 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:49:49,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:49:49,977 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:49:49,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:49:49,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:49:49,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:49:49,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:49:49,978 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:49:49,978 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:49:49,978 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:49:49,978 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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 -> 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af [2024-11-24 01:49:50,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:49:50,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:49:50,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:49:50,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:49:50,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:49:50,307 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-24 01:49:54,181 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data/f6127d15b/26f0fc844fbf4612a1a1f4c854343791/FLAG7dad75ae4 [2024-11-24 01:49:54,561 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:49:54,562 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-24 01:49:54,574 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data/f6127d15b/26f0fc844fbf4612a1a1f4c854343791/FLAG7dad75ae4 [2024-11-24 01:49:54,593 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data/f6127d15b/26f0fc844fbf4612a1a1f4c854343791 [2024-11-24 01:49:54,596 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:49:54,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:49:54,600 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:49:54,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:49:54,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:49:54,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:49:54" (1/1) ... [2024-11-24 01:49:54,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f15c65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:54, skipping insertion in model container [2024-11-24 01:49:54,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:49:54" (1/1) ... [2024-11-24 01:49:54,633 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:49:54,838 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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-11-24 01:49:54,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:49:54,953 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:49:54,968 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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-11-24 01:49:55,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:49:55,041 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:49:55,042 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55 WrapperNode [2024-11-24 01:49:55,043 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:49:55,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:49:55,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:49:55,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:49:55,055 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,133 INFO L138 Inliner]: procedures = 29, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 459 [2024-11-24 01:49:55,135 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:49:55,135 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:49:55,136 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:49:55,136 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:49:55,150 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,151 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,159 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,202 INFO L175 MemorySlicer]: Split 115 memory accesses to 2 slices as follows [2, 113]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 12 writes are split as follows [0, 12]. [2024-11-24 01:49:55,202 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,202 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,232 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,233 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:49:55,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:49:55,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:49:55,268 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:49:55,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (1/1) ... [2024-11-24 01:49:55,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:49:55,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:55,331 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:49:55,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:49:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:49:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-24 01:49:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-24 01:49:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:49:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:49:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-24 01:49:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-24 01:49:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:49:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:49:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-11-24 01:49:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-11-24 01:49:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:49:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:49:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:49:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:49:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:49:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:49:55,548 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:49:55,551 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:49:56,235 INFO L? ?]: Removed 130 outVars from TransFormulas that were not future-live. [2024-11-24 01:49:56,235 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:49:56,255 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:49:56,255 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:49:56,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:49:56 BoogieIcfgContainer [2024-11-24 01:49:56,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:49:56,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:49:56,262 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:49:56,274 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:49:56,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:49:54" (1/3) ... [2024-11-24 01:49:56,275 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c7c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:49:56, skipping insertion in model container [2024-11-24 01:49:56,275 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:49:55" (2/3) ... [2024-11-24 01:49:56,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59c7c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:49:56, skipping insertion in model container [2024-11-24 01:49:56,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:49:56" (3/3) ... [2024-11-24 01:49:56,281 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-24 01:49:56,321 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:49:56,327 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-47.i that has 2 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:49:56,458 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:49:56,474 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;@2a30b1db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:49:56,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:49:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:49:56,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:49:56,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:56,491 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:56,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:49:56,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:56,498 INFO L85 PathProgramCache]: Analyzing trace with hash -766083450, now seen corresponding path program 1 times [2024-11-24 01:49:56,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:56,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912048911] [2024-11-24 01:49:56,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:56,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:56,814 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-24 01:49:56,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:56,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912048911] [2024-11-24 01:49:56,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912048911] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:56,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670506631] [2024-11-24 01:49:56,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:56,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:56,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:56,824 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:56,825 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:49:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:57,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:49:57,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:57,148 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-24 01:49:57,148 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:49:57,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670506631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:57,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:49:57,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:49:57,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767472546] [2024-11-24 01:49:57,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:57,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:49:57,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:57,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:49:57,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:49:57,183 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:49:57,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:57,213 INFO L93 Difference]: Finished difference Result 185 states and 285 transitions. [2024-11-24 01:49:57,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:49:57,215 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-11-24 01:49:57,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:57,226 INFO L225 Difference]: With dead ends: 185 [2024-11-24 01:49:57,227 INFO L226 Difference]: Without dead ends: 92 [2024-11-24 01:49:57,232 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:49:57,235 INFO L435 NwaCegarLoop]: 134 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, 134 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 [2024-11-24 01:49:57,236 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:49:57,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-24 01:49:57,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-24 01:49:57,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:49:57,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2024-11-24 01:49:57,283 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 84 [2024-11-24 01:49:57,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:57,284 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2024-11-24 01:49:57,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:49:57,285 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2024-11-24 01:49:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:49:57,288 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:57,288 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:57,300 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:49:57,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:49:57,489 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:49:57,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:57,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1428001612, now seen corresponding path program 1 times [2024-11-24 01:49:57,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:57,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410177805] [2024-11-24 01:49:57,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:57,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:57,766 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:49:57,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:57,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410177805] [2024-11-24 01:49:57,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410177805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:57,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:49:57,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:49:57,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463880157] [2024-11-24 01:49:57,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:57,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:49:57,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:57,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:49:57,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:49:57,770 INFO L87 Difference]: Start difference. First operand 92 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:49:57,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:57,800 INFO L93 Difference]: Finished difference Result 182 states and 267 transitions. [2024-11-24 01:49:57,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:49:57,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-24 01:49:57,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:57,802 INFO L225 Difference]: With dead ends: 182 [2024-11-24 01:49:57,802 INFO L226 Difference]: Without dead ends: 93 [2024-11-24 01:49:57,803 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 [2024-11-24 01:49:57,804 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:49:57,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:49:57,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-24 01:49:57,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-24 01:49:57,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:49:57,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-24 01:49:57,815 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 84 [2024-11-24 01:49:57,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:57,817 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-24 01:49:57,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:49:57,817 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-24 01:49:57,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:49:57,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:57,820 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:57,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:49:57,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:49:57,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:57,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1178021942, now seen corresponding path program 1 times [2024-11-24 01:49:57,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:57,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564528390] [2024-11-24 01:49:57,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:57,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:57,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:58,436 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-24 01:49:58,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:58,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564528390] [2024-11-24 01:49:58,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564528390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:58,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444853312] [2024-11-24 01:49:58,437 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:58,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:58,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:58,439 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:58,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:49:58,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:58,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:49:58,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:58,794 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:49:58,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:49:58,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444853312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:58,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:49:58,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2024-11-24 01:49:58,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045867129] [2024-11-24 01:49:58,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:58,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:49:58,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:58,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:49:58,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:49:58,799 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:49:58,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:49:58,874 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-11-24 01:49:58,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:49:58,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-24 01:49:58,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:49:58,880 INFO L225 Difference]: With dead ends: 186 [2024-11-24 01:49:58,880 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 01:49:58,881 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:49:58,882 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:49:58,882 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 384 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:49:58,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 01:49:58,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 95. [2024-11-24 01:49:58,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 84 states have (on average 1.4166666666666667) internal successors, (119), 84 states have internal predecessors, (119), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:49:58,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 137 transitions. [2024-11-24 01:49:58,905 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 137 transitions. Word has length 84 [2024-11-24 01:49:58,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:49:58,906 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 137 transitions. [2024-11-24 01:49:58,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:49:58,907 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 137 transitions. [2024-11-24 01:49:58,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:49:58,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:49:58,909 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:49:58,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:49:59,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:59,117 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:49:59,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:49:59,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1179868984, now seen corresponding path program 1 times [2024-11-24 01:49:59,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:49:59,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854334460] [2024-11-24 01:49:59,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:59,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:49:59,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-24 01:49:59,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:49:59,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854334460] [2024-11-24 01:49:59,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854334460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:49:59,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243586332] [2024-11-24 01:49:59,547 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:49:59,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:49:59,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:49:59,550 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:49:59,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:49:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:49:59,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:49:59,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:49:59,928 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:49:59,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:49:59,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243586332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:49:59,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:49:59,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-11-24 01:49:59,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253356259] [2024-11-24 01:49:59,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:49:59,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:49:59,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:49:59,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:49:59,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:49:59,934 INFO L87 Difference]: Start difference. First operand 95 states and 137 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:00,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:00,006 INFO L93 Difference]: Finished difference Result 190 states and 275 transitions. [2024-11-24 01:50:00,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:50:00,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-24 01:50:00,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:00,009 INFO L225 Difference]: With dead ends: 190 [2024-11-24 01:50:00,009 INFO L226 Difference]: Without dead ends: 98 [2024-11-24 01:50:00,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:50:00,014 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:00,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:50:00,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-24 01:50:00,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-24 01:50:00,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 87 states have (on average 1.4022988505747127) internal successors, (122), 87 states have internal predecessors, (122), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:50:00,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 140 transitions. [2024-11-24 01:50:00,037 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 140 transitions. Word has length 84 [2024-11-24 01:50:00,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:00,038 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 140 transitions. [2024-11-24 01:50:00,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:00,038 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 140 transitions. [2024-11-24 01:50:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:50:00,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:00,041 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:00,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:50:00,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:50:00,244 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:00,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash -1603693142, now seen corresponding path program 1 times [2024-11-24 01:50:00,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:50:00,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790103266] [2024-11-24 01:50:00,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:00,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:50:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:50:00,455 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:50:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:50:00,692 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:50:00,695 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:50:00,699 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:50:00,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:50:00,707 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-24 01:50:00,895 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:50:00,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:50:00 BoogieIcfgContainer [2024-11-24 01:50:00,904 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:50:00,905 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:50:00,906 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:50:00,910 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:50:00,911 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:49:56" (3/4) ... [2024-11-24 01:50:00,915 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:50:00,917 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:50:00,918 INFO L158 Benchmark]: Toolchain (without parser) took 6319.77ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 40.6MB in the end (delta: 51.4MB). Peak memory consumption was 51.2MB. Max. memory is 16.1GB. [2024-11-24 01:50:00,918 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:50:00,920 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.42ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 77.4MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:50:00,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.78ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 74.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:50:00,922 INFO L158 Benchmark]: Boogie Preprocessor took 131.83ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 71.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:50:00,923 INFO L158 Benchmark]: RCFGBuilder took 990.41ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 43.6MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 01:50:00,923 INFO L158 Benchmark]: TraceAbstraction took 4642.93ms. Allocated memory is still 117.4MB. Free memory was 43.0MB in the beginning and 40.6MB in the end (delta: 2.4MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2024-11-24 01:50:00,924 INFO L158 Benchmark]: Witness Printer took 11.59ms. Allocated memory is still 117.4MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:50:00,927 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.42ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 77.4MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.78ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 74.7MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 131.83ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 71.6MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 990.41ms. Allocated memory is still 117.4MB. Free memory was 71.6MB in the beginning and 43.6MB in the end (delta: 27.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 4642.93ms. Allocated memory is still 117.4MB. Free memory was 43.0MB in the beginning and 40.6MB in the end (delta: 2.4MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 11.59ms. Allocated memory is still 117.4MB. Free memory was 40.6MB in the beginning and 40.6MB in the end (delta: 13.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 104, overapproximation of someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someBinaryDOUBLEComparisonOperation at line 74. Possible FailurePath: [L33] unsigned char isInitial = 0; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L34-L44] struct WrapperStruct0 WrapperStruct0 = { 24.575, 3.5, 16, 16, 4, 8, 1, 1, 3.8 }; [L45] double* WrapperStruct0_var_1_1_Pointer = &(WrapperStruct0.var_1_1); [L46] double* WrapperStruct0_var_1_8_Pointer = &(WrapperStruct0.var_1_8); [L47] signed char* WrapperStruct0_var_1_9_Pointer = &(WrapperStruct0.var_1_9); [L48] signed char* WrapperStruct0_var_1_10_Pointer = &(WrapperStruct0.var_1_10); [L49] signed char* WrapperStruct0_var_1_11_Pointer = &(WrapperStruct0.var_1_11); [L50] signed long int* WrapperStruct0_var_1_12_Pointer = &(WrapperStruct0.var_1_12); [L51] unsigned char* WrapperStruct0_var_1_13_Pointer = &(WrapperStruct0.var_1_13); [L52] unsigned char* WrapperStruct0_var_1_14_Pointer = &(WrapperStruct0.var_1_14); [L53] double* WrapperStruct0_var_1_15_Pointer = &(WrapperStruct0.var_1_15); [L54] signed long int last_1_WrapperStruct0_var_1_12 = 8; VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=0, last_1_WrapperStruct0_var_1_12=8] [L108] isInitial = 1 [L109] FCALL initially() [L111] CALL updateLastVariables() [L101] EXPR WrapperStruct0.var_1_12 [L101] last_1_WrapperStruct0_var_1_12 = WrapperStruct0.var_1_12 [L111] RET updateLastVariables() [L112] CALL updateVariables() [L85] WrapperStruct0.var_1_8 = __VERIFIER_nondet_double() [L86] EXPR WrapperStruct0.var_1_8 [L86] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F [L86] EXPR WrapperStruct0.var_1_8 [L86] EXPR WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] EXPR (WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] CALL assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L86] RET assume_abort_if_not((WrapperStruct0.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct0.var_1_8 <= -1.0e-20F) || (WrapperStruct0.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct0.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L87] WrapperStruct0.var_1_10 = __VERIFIER_nondet_char() [L88] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L88] CALL assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L88] RET assume_abort_if_not(WrapperStruct0.var_1_10 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] EXPR WrapperStruct0.var_1_10 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] CALL assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L89] RET assume_abort_if_not(WrapperStruct0.var_1_10 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L90] WrapperStruct0.var_1_11 = __VERIFIER_nondet_char() [L91] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L91] CALL assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L91] RET assume_abort_if_not(WrapperStruct0.var_1_11 >= -63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L92] EXPR WrapperStruct0.var_1_11 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L92] CALL assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L92] RET assume_abort_if_not(WrapperStruct0.var_1_11 <= 63) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L93] WrapperStruct0.var_1_13 = __VERIFIER_nondet_uchar() [L94] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L94] CALL assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L94] RET assume_abort_if_not(WrapperStruct0.var_1_13 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L95] EXPR WrapperStruct0.var_1_13 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L95] CALL assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L95] RET assume_abort_if_not(WrapperStruct0.var_1_13 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L96] WrapperStruct0.var_1_14 = __VERIFIER_nondet_uchar() [L97] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L97] CALL assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L97] RET assume_abort_if_not(WrapperStruct0.var_1_14 >= 0) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L98] EXPR WrapperStruct0.var_1_14 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L98] CALL assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L20] COND FALSE !(!cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, \old(cond)=1, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L98] RET assume_abort_if_not(WrapperStruct0.var_1_14 <= 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L112] RET updateVariables() [L113] CALL step() [L58] COND FALSE !(-4 > last_1_WrapperStruct0_var_1_12) [L63] EXPR \read(*WrapperStruct0_var_1_10_Pointer) [L63] (*(WrapperStruct0_var_1_9_Pointer)) = (*(WrapperStruct0_var_1_10_Pointer)) [L65] EXPR \read(*WrapperStruct0_var_1_13_Pointer) [L65] unsigned char stepLocal_0 = ! (*(WrapperStruct0_var_1_13_Pointer)); [L66] stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer)) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L66] stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer)) [L66] EXPR \read(*WrapperStruct0_var_1_14_Pointer) [L66] stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer)) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L66] COND FALSE !(stepLocal_0 || (*(WrapperStruct0_var_1_14_Pointer))) [L73] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L73] (*(WrapperStruct0_var_1_15_Pointer)) = (*(WrapperStruct0_var_1_8_Pointer)) [L74] EXPR \read(*WrapperStruct0_var_1_15_Pointer) [L74] EXPR \read(*WrapperStruct0_var_1_15_Pointer) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L74] COND FALSE !((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) [L79] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L79] EXPR \read(*WrapperStruct0_var_1_9_Pointer) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L79] COND TRUE (*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer)) [L80] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L80] (*(WrapperStruct0_var_1_1_Pointer)) = (*(WrapperStruct0_var_1_8_Pointer)) [L113] RET step() [L114] CALL, EXPR property() [L104] EXPR \read(*WrapperStruct0_var_1_15_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_15_Pointer) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1) [L104] EXPR \read(*WrapperStruct0_var_1_12_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_9_Pointer) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1 [L104] EXPR \read(*WrapperStruct0_var_1_1_Pointer) [L104] EXPR \read(*WrapperStruct0_var_1_8_Pointer) [L104] EXPR ((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1 VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR (((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer))))) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR (((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer))))) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR ((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR (((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_15_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104] EXPR (((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_15_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L104-L105] return (((((*(WrapperStruct0_var_1_15_Pointer)) <= (*(WrapperStruct0_var_1_15_Pointer))) ? ((((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_12_Pointer))) >= ((*(WrapperStruct0_var_1_12_Pointer)) + (*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (((((*(WrapperStruct0_var_1_8_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_8_Pointer))) : ((*(WrapperStruct0_var_1_8_Pointer))))))) : 1) : (((*(WrapperStruct0_var_1_12_Pointer)) > (*(WrapperStruct0_var_1_9_Pointer))) ? ((*(WrapperStruct0_var_1_1_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) : 1)) && ((-4 > last_1_WrapperStruct0_var_1_12) ? (((~ last_1_WrapperStruct0_var_1_12) <= last_1_WrapperStruct0_var_1_12) ? ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (((((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) < 0 ) ? -((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))) : ((*(WrapperStruct0_var_1_10_Pointer)) + (*(WrapperStruct0_var_1_11_Pointer))))))) : 1) : ((*(WrapperStruct0_var_1_9_Pointer)) == ((signed char) (*(WrapperStruct0_var_1_10_Pointer)))))) && (((! (*(WrapperStruct0_var_1_13_Pointer))) || (*(WrapperStruct0_var_1_14_Pointer))) ? ((! (*(WrapperStruct0_var_1_14_Pointer))) ? ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) ((((((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) < 0 ) ? -(((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))) : (((((*(WrapperStruct0_var_1_9_Pointer))) < ((*(WrapperStruct0_var_1_9_Pointer)))) ? ((*(WrapperStruct0_var_1_9_Pointer))) : ((*(WrapperStruct0_var_1_9_Pointer))))))))) : ((*(WrapperStruct0_var_1_12_Pointer)) == ((signed long int) (*(WrapperStruct0_var_1_9_Pointer))))) : 1)) && ((*(WrapperStruct0_var_1_15_Pointer)) == ((double) (*(WrapperStruct0_var_1_8_Pointer)))) ; [L114] RET, EXPR property() [L114] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] [L19] reach_error() VAL [WrapperStruct0={4:0}, WrapperStruct0_var_1_10_Pointer={4:17}, WrapperStruct0_var_1_11_Pointer={4:18}, WrapperStruct0_var_1_12_Pointer={4:19}, WrapperStruct0_var_1_13_Pointer={4:23}, WrapperStruct0_var_1_14_Pointer={4:24}, WrapperStruct0_var_1_15_Pointer={4:25}, WrapperStruct0_var_1_1_Pointer={4:0}, WrapperStruct0_var_1_8_Pointer={4:8}, WrapperStruct0_var_1_9_Pointer={4:16}, isInitial=1, last_1_WrapperStruct0_var_1_12=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 1287 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 758 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 529 mSDtfsCounter, 49 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 270 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=4, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 672 NumberOfCodeBlocks, 672 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 581 ConstructedInterpolants, 0 QuantifiedInterpolants, 615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 971 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 974/1008 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 [2024-11-24 01:50:00,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:50:04,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:50:04,360 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:50:04,372 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:50:04,372 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:50:04,399 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:50:04,400 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:50:04,400 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:50:04,400 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:50:04,401 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:50:04,401 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:50:04,401 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:50:04,401 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:50:04,402 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:50:04,402 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:50:04,402 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:50:04,402 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:50:04,402 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:50:04,403 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:50:04,403 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:50:04,403 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:50:04,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:50:04,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:50:04,403 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:50:04,403 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:50:04,404 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:50:04,404 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:50:04,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:50:04,404 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:50:04,404 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:50:04,404 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:50:04,404 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:50:04,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:50:04,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:50:04,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:50:04,405 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:50:04,405 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:50:04,405 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:50:04,405 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:50:04,406 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:50:04,406 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:50:04,406 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:50:04,406 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:50:04,406 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:50:04,406 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:50:04,407 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:50:04,407 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:50:04,407 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:50:04,407 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:50:04,407 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:50:04,407 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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 -> 221b5a6bbea2d3affa28d277422c6c16e25871b0f2e6dd0968bfbdc5b5eb82af [2024-11-24 01:50:04,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:50:04,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:50:04,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:50:04,784 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:50:04,785 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:50:04,786 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-24 01:50:08,372 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data/64448ad8d/c1b405e88e0e4d6a949f6ff8ecec847b/FLAG2d8a44e0d [2024-11-24 01:50:08,755 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:50:08,756 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-24 01:50:08,772 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data/64448ad8d/c1b405e88e0e4d6a949f6ff8ecec847b/FLAG2d8a44e0d [2024-11-24 01:50:08,799 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/data/64448ad8d/c1b405e88e0e4d6a949f6ff8ecec847b [2024-11-24 01:50:08,803 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:50:08,806 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:50:08,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:50:08,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:50:08,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:50:08,817 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:50:08" (1/1) ... [2024-11-24 01:50:08,818 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cea14af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:08, skipping insertion in model container [2024-11-24 01:50:08,818 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:50:08" (1/1) ... [2024-11-24 01:50:08,850 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:50:09,078 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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-11-24 01:50:09,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:50:09,227 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:50:09,246 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_320c6bb6-eee1-4860-ba65-e6f99a97dec7/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-47.i[917,930] [2024-11-24 01:50:09,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:50:09,342 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:50:09,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09 WrapperNode [2024-11-24 01:50:09,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:50:09,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:50:09,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:50:09,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:50:09,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,371 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,416 INFO L138 Inliner]: procedures = 33, calls = 136, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 457 [2024-11-24 01:50:09,416 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:50:09,417 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:50:09,417 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:50:09,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:50:09,432 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,433 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,441 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,468 INFO L175 MemorySlicer]: Split 115 memory accesses to 2 slices as follows [2, 113]. 98 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 9]. The 12 writes are split as follows [0, 12]. [2024-11-24 01:50:09,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,468 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,510 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,515 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,528 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,549 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:50:09,550 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:50:09,550 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:50:09,550 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:50:09,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (1/1) ... [2024-11-24 01:50:09,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:50:09,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:50:09,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:50:09,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:50:09,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:50:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-24 01:50:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-24 01:50:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-24 01:50:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-24 01:50:09,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 01:50:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 01:50:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:50:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 01:50:09,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2024-11-24 01:50:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#1 [2024-11-24 01:50:09,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2024-11-24 01:50:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2024-11-24 01:50:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-24 01:50:09,647 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-24 01:50:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:50:09,648 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:50:09,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:50:09,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:50:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 01:50:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 01:50:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-24 01:50:09,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-24 01:50:09,889 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:50:09,891 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:50:10,835 INFO L? ?]: Removed 132 outVars from TransFormulas that were not future-live. [2024-11-24 01:50:10,838 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:50:10,853 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:50:10,854 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:50:10,854 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:50:10 BoogieIcfgContainer [2024-11-24 01:50:10,854 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:50:10,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:50:10,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:50:10,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:50:10,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:50:08" (1/3) ... [2024-11-24 01:50:10,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a32a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:50:10, skipping insertion in model container [2024-11-24 01:50:10,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:50:09" (2/3) ... [2024-11-24 01:50:10,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a32a9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:50:10, skipping insertion in model container [2024-11-24 01:50:10,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:50:10" (3/3) ... [2024-11-24 01:50:10,872 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-47.i [2024-11-24 01:50:10,893 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:50:10,895 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-sp_file-47.i that has 2 procedures, 96 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:50:10,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:50:10,991 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;@2e7911bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:50:10,992 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:50:11,001 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:50:11,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:50:11,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:11,018 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:11,018 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:11,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:11,026 INFO L85 PathProgramCache]: Analyzing trace with hash -766083450, now seen corresponding path program 1 times [2024-11-24 01:50:11,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:50:11,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [52137844] [2024-11-24 01:50:11,041 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:11,042 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 [2024-11-24 01:50:11,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:50:11,048 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:50:11,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:11,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:11,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:50:11,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:11,562 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-24 01:50:11,562 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:50:11,563 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:50:11,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [52137844] [2024-11-24 01:50:11,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [52137844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:11,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:11,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:50:11,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468581697] [2024-11-24 01:50:11,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:11,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:50:11,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:50:11,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:50:11,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:50:11,602 INFO L87 Difference]: Start difference. First operand has 96 states, 84 states have (on average 1.4642857142857142) internal successors, (123), 85 states have internal predecessors, (123), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:50:11,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:11,644 INFO L93 Difference]: Finished difference Result 185 states and 285 transitions. [2024-11-24 01:50:11,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:50:11,647 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2024-11-24 01:50:11,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:11,657 INFO L225 Difference]: With dead ends: 185 [2024-11-24 01:50:11,657 INFO L226 Difference]: Without dead ends: 92 [2024-11-24 01:50:11,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:50:11,667 INFO L435 NwaCegarLoop]: 134 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, 134 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 [2024-11-24 01:50:11,668 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:50:11,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-24 01:50:11,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-24 01:50:11,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:50:11,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 134 transitions. [2024-11-24 01:50:11,730 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 134 transitions. Word has length 84 [2024-11-24 01:50:11,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:11,730 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 134 transitions. [2024-11-24 01:50:11,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 01:50:11,731 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 134 transitions. [2024-11-24 01:50:11,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:50:11,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:11,736 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:11,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:11,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:11,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:11,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:11,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1428001612, now seen corresponding path program 1 times [2024-11-24 01:50:11,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:50:11,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208020565] [2024-11-24 01:50:11,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:11,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:50:11,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:50:11,946 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:50:11,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:12,292 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:50:12,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:12,331 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:50:12,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:50:12,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:50:12,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [208020565] [2024-11-24 01:50:12,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [208020565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:12,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:12,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:50:12,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356491037] [2024-11-24 01:50:12,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:12,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:50:12,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:50:12,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:50:12,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:50:12,337 INFO L87 Difference]: Start difference. First operand 92 states and 134 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:12,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:12,382 INFO L93 Difference]: Finished difference Result 182 states and 267 transitions. [2024-11-24 01:50:12,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:50:12,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-24 01:50:12,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:12,387 INFO L225 Difference]: With dead ends: 182 [2024-11-24 01:50:12,387 INFO L226 Difference]: Without dead ends: 93 [2024-11-24 01:50:12,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:50:12,390 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:12,391 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 260 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:50:12,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-24 01:50:12,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-24 01:50:12,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 82 states have (on average 1.4268292682926829) internal successors, (117), 82 states have internal predecessors, (117), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:50:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 135 transitions. [2024-11-24 01:50:12,411 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 135 transitions. Word has length 84 [2024-11-24 01:50:12,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:12,413 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 135 transitions. [2024-11-24 01:50:12,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:12,413 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 135 transitions. [2024-11-24 01:50:12,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:50:12,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:12,423 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:12,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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)] Forceful destruction successful, exit code 0 [2024-11-24 01:50:12,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:12,624 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:12,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:12,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1178021942, now seen corresponding path program 1 times [2024-11-24 01:50:12,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:50:12,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950303922] [2024-11-24 01:50:12,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:12,626 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 [2024-11-24 01:50:12,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:50:12,630 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:50:12,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:13,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:50:13,021 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:13,106 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:50:13,108 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:50:13,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:50:13,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950303922] [2024-11-24 01:50:13,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950303922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:13,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:13,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:50:13,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644885459] [2024-11-24 01:50:13,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:13,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:50:13,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:50:13,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:50:13,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:50:13,115 INFO L87 Difference]: Start difference. First operand 93 states and 135 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:13,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:13,364 INFO L93 Difference]: Finished difference Result 186 states and 271 transitions. [2024-11-24 01:50:13,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:50:13,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-24 01:50:13,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:13,367 INFO L225 Difference]: With dead ends: 186 [2024-11-24 01:50:13,370 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 01:50:13,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:50:13,372 INFO L435 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:13,373 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 509 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:50:13,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 01:50:13,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-24 01:50:13,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 85 states have (on average 1.411764705882353) internal successors, (120), 85 states have internal predecessors, (120), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:50:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 138 transitions. [2024-11-24 01:50:13,389 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 138 transitions. Word has length 84 [2024-11-24 01:50:13,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:13,390 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 138 transitions. [2024-11-24 01:50:13,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:13,391 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 138 transitions. [2024-11-24 01:50:13,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:50:13,394 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:13,394 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:13,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:13,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:13,595 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:13,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:13,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1605540184, now seen corresponding path program 1 times [2024-11-24 01:50:13,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:50:13,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2043012598] [2024-11-24 01:50:13,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:13,597 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 [2024-11-24 01:50:13,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:50:13,601 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:50:13,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:14,023 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:50:14,037 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:50:14,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:50:14,089 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:50:14,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2043012598] [2024-11-24 01:50:14,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2043012598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:14,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:14,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:50:14,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950728044] [2024-11-24 01:50:14,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:14,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:50:14,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:50:14,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:50:14,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:50:14,096 INFO L87 Difference]: Start difference. First operand 96 states and 138 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:15,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:50:15,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:15,208 INFO L93 Difference]: Finished difference Result 194 states and 280 transitions. [2024-11-24 01:50:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:50:15,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-24 01:50:15,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:15,214 INFO L225 Difference]: With dead ends: 194 [2024-11-24 01:50:15,214 INFO L226 Difference]: Without dead ends: 101 [2024-11-24 01:50:15,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:50:15,218 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 1 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:15,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 503 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:50:15,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-24 01:50:15,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 100. [2024-11-24 01:50:15,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 89 states have (on average 1.3932584269662922) internal successors, (124), 89 states have internal predecessors, (124), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 01:50:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 142 transitions. [2024-11-24 01:50:15,236 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 142 transitions. Word has length 84 [2024-11-24 01:50:15,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:15,237 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 142 transitions. [2024-11-24 01:50:15,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:15,238 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 142 transitions. [2024-11-24 01:50:15,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:50:15,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:15,244 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:15,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:15,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:15,444 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:15,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:15,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1603693142, now seen corresponding path program 1 times [2024-11-24 01:50:15,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:50:15,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1453237344] [2024-11-24 01:50:15,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:15,446 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 [2024-11-24 01:50:15,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:50:15,448 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:50:15,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:16,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-24 01:50:16,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:16,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-11-24 01:50:17,912 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 104 treesize of output 55 [2024-11-24 01:50:18,794 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 101 treesize of output 63 [2024-11-24 01:50:19,966 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 74 [2024-11-24 01:50:21,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 85 [2024-11-24 01:50:22,489 INFO L349 Elim1Store]: treesize reduction 79, result has 16.0 percent of original size [2024-11-24 01:50:22,490 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 130 treesize of output 112 [2024-11-24 01:50:22,966 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:50:22,967 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 167 treesize of output 79 [2024-11-24 01:50:23,175 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 64 proven. 56 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-24 01:50:23,176 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:50:23,909 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:50:23,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1453237344] [2024-11-24 01:50:23,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1453237344] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:50:23,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1819999337] [2024-11-24 01:50:23,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:23,910 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:50:23,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:50:23,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:50:23,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-24 01:50:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:26,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 01:50:26,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:26,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 01:50:28,712 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 117 treesize of output 71 [2024-11-24 01:50:30,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 82 [2024-11-24 01:50:31,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2024-11-24 01:50:32,746 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 110 [2024-11-24 01:50:34,137 INFO L349 Elim1Store]: treesize reduction 91, result has 14.2 percent of original size [2024-11-24 01:50:34,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 136 treesize of output 137 [2024-11-24 01:50:34,712 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 51 [2024-11-24 01:50:39,042 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:50:39,043 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:50:39,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1819999337] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:50:39,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:50:39,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 22 [2024-11-24 01:50:39,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31481559] [2024-11-24 01:50:39,321 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:50:39,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:50:39,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:50:39,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:50:39,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=544, Unknown=1, NotChecked=0, Total=650 [2024-11-24 01:50:39,324 INFO L87 Difference]: Start difference. First operand 100 states and 142 transitions. Second operand has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 22 states have internal predecessors, (90), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-24 01:50:49,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:49,682 INFO L93 Difference]: Finished difference Result 370 states and 516 transitions. [2024-11-24 01:50:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:50:49,683 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 22 states have internal predecessors, (90), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 84 [2024-11-24 01:50:49,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:49,685 INFO L225 Difference]: With dead ends: 370 [2024-11-24 01:50:49,685 INFO L226 Difference]: Without dead ends: 273 [2024-11-24 01:50:49,687 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=271, Invalid=1060, Unknown=1, NotChecked=0, Total=1332 [2024-11-24 01:50:49,688 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 1361 mSDsluCounter, 745 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:49,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 822 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2024-11-24 01:50:49,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-24 01:50:49,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 150. [2024-11-24 01:50:49,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 125 states have (on average 1.328) internal successors, (166), 125 states have internal predecessors, (166), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:50:49,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 202 transitions. [2024-11-24 01:50:49,736 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 202 transitions. Word has length 84 [2024-11-24 01:50:49,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:49,737 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 202 transitions. [2024-11-24 01:50:49,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.9130434782608696) internal successors, (90), 22 states have internal predecessors, (90), 9 states have call successors, (18), 9 states have call predecessors, (18), 9 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2024-11-24 01:50:49,737 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 202 transitions. [2024-11-24 01:50:49,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:50:49,739 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:49,740 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:49,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:49,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2024-11-24 01:50:50,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 01:50:50,141 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:50,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:50,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1303975955, now seen corresponding path program 1 times [2024-11-24 01:50:50,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:50:50,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990144679] [2024-11-24 01:50:50,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:50,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:50:50,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:50:50,145 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:50:50,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:50,417 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:50:50,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:50,555 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:50:50,555 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 136 treesize of output 46 [2024-11-24 01:50:50,683 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:50:50,683 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:50:50,683 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:50:50,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990144679] [2024-11-24 01:50:50,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990144679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:50,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:50,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:50:50,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838318291] [2024-11-24 01:50:50,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:50,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:50:50,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:50:50,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:50:50,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:50:50,686 INFO L87 Difference]: Start difference. First operand 150 states and 202 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:55,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:55,568 INFO L93 Difference]: Finished difference Result 342 states and 462 transitions. [2024-11-24 01:50:55,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:50:55,570 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-24 01:50:55,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:55,572 INFO L225 Difference]: With dead ends: 342 [2024-11-24 01:50:55,572 INFO L226 Difference]: Without dead ends: 195 [2024-11-24 01:50:55,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:50:55,574 INFO L435 NwaCegarLoop]: 114 mSDtfsCounter, 57 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:55,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 366 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-24 01:50:55,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-24 01:50:55,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 152. [2024-11-24 01:50:55,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.3228346456692914) internal successors, (168), 127 states have internal predecessors, (168), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:50:55,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 204 transitions. [2024-11-24 01:50:55,621 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 204 transitions. Word has length 84 [2024-11-24 01:50:55,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:55,621 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 204 transitions. [2024-11-24 01:50:55,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:55,621 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 204 transitions. [2024-11-24 01:50:55,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-24 01:50:55,625 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:55,626 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:55,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:55,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:55,826 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:55,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:55,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1363453396, now seen corresponding path program 1 times [2024-11-24 01:50:55,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:50:55,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [81616425] [2024-11-24 01:50:55,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:55,828 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 [2024-11-24 01:50:55,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:50:55,830 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:50:55,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:56,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:56,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:50:56,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:56,107 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:50:56,109 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:50:56,109 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:50:56,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [81616425] [2024-11-24 01:50:56,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [81616425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:50:56,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:50:56,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:50:56,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98922415] [2024-11-24 01:50:56,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:50:56,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:50:56,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:50:56,111 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:50:56,111 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:50:56,111 INFO L87 Difference]: Start difference. First operand 152 states and 204 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:56,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:50:56,196 INFO L93 Difference]: Finished difference Result 301 states and 405 transitions. [2024-11-24 01:50:56,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:50:56,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 84 [2024-11-24 01:50:56,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:50:56,198 INFO L225 Difference]: With dead ends: 301 [2024-11-24 01:50:56,199 INFO L226 Difference]: Without dead ends: 152 [2024-11-24 01:50:56,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:50:56,200 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:50:56,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 389 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:50:56,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-24 01:50:56,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-11-24 01:50:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 127 states have (on average 1.31496062992126) internal successors, (167), 127 states have internal predecessors, (167), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:50:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 203 transitions. [2024-11-24 01:50:56,227 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 203 transitions. Word has length 84 [2024-11-24 01:50:56,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:50:56,227 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 203 transitions. [2024-11-24 01:50:56,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:50:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 203 transitions. [2024-11-24 01:50:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-24 01:50:56,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:50:56,229 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:50:56,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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)] Ended with exit code 0 [2024-11-24 01:50:56,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:56,430 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:50:56,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:50:56,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1802536291, now seen corresponding path program 1 times [2024-11-24 01:50:56,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:50:56,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [171730922] [2024-11-24 01:50:56,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:50:56,431 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 [2024-11-24 01:50:56,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:50:56,433 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:50:56,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:50:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:50:56,818 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 01:50:56,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:50:57,071 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 [2024-11-24 01:50:58,180 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 104 treesize of output 55 [2024-11-24 01:50:59,125 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 104 treesize of output 55 [2024-11-24 01:51:00,007 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 104 treesize of output 55 [2024-11-24 01:51:00,867 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 101 treesize of output 63 [2024-11-24 01:51:01,985 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-11-24 01:51:01,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 90 [2024-11-24 01:51:02,330 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 78 [2024-11-24 01:51:02,596 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:51:02,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 151 treesize of output 71 [2024-11-24 01:51:02,739 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-24 01:51:02,739 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:51:03,804 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:51:03,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [171730922] [2024-11-24 01:51:03,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [171730922] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:51:03,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [61982597] [2024-11-24 01:51:03,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:03,805 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:51:03,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:51:03,807 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:51:03,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-24 01:51:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:06,078 INFO L256 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-24 01:51:06,086 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:51:06,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-11-24 01:51:08,725 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 101 treesize of output 63 [2024-11-24 01:51:10,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2024-11-24 01:51:11,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2024-11-24 01:51:13,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2024-11-24 01:51:14,873 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-11-24 01:51:14,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 90 [2024-11-24 01:51:15,485 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 78 [2024-11-24 01:51:15,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 115 [2024-11-24 01:51:16,311 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 24 proven. 56 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-24 01:51:16,311 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:51:18,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [61982597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:51:18,350 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:51:18,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2024-11-24 01:51:18,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695953835] [2024-11-24 01:51:18,350 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:51:18,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:51:18,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:51:18,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:51:18,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2024-11-24 01:51:18,352 INFO L87 Difference]: Start difference. First operand 152 states and 203 transitions. Second operand has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 20 states have internal predecessors, (80), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:51:28,834 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] [2024-11-24 01:51:32,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:51:32,630 INFO L93 Difference]: Finished difference Result 432 states and 586 transitions. [2024-11-24 01:51:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:51:32,631 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 20 states have internal predecessors, (80), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) Word has length 85 [2024-11-24 01:51:32,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:51:32,633 INFO L225 Difference]: With dead ends: 432 [2024-11-24 01:51:32,633 INFO L226 Difference]: Without dead ends: 283 [2024-11-24 01:51:32,634 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 319 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=244, Invalid=1162, Unknown=0, NotChecked=0, Total=1406 [2024-11-24 01:51:32,635 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 1020 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 1132 mSolverCounterSat, 75 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1132 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:51:32,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 701 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1132 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2024-11-24 01:51:32,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2024-11-24 01:51:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 161. [2024-11-24 01:51:32,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 136 states have (on average 1.3308823529411764) internal successors, (181), 136 states have internal predecessors, (181), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:51:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 217 transitions. [2024-11-24 01:51:32,668 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 217 transitions. Word has length 85 [2024-11-24 01:51:32,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:51:32,669 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 217 transitions. [2024-11-24 01:51:32,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 20 states have internal predecessors, (80), 5 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 5 states have call predecessors, (18), 5 states have call successors, (18) [2024-11-24 01:51:32,669 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 217 transitions. [2024-11-24 01:51:32,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 01:51:32,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:51:32,671 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:51:32,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-24 01:51:32,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:51:33,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:51:33,072 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:51:33,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:51:33,072 INFO L85 PathProgramCache]: Analyzing trace with hash -760820634, now seen corresponding path program 1 times [2024-11-24 01:51:33,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:51:33,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1277610291] [2024-11-24 01:51:33,073 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:33,073 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 [2024-11-24 01:51:33,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:51:33,075 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:51:33,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:51:33,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:33,411 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:51:33,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:51:33,521 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:51:33,522 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 52 treesize of output 36 [2024-11-24 01:51:33,601 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:51:33,601 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:51:33,601 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:51:33,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1277610291] [2024-11-24 01:51:33,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1277610291] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:51:33,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:51:33,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:51:33,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722851795] [2024-11-24 01:51:33,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:51:33,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:51:33,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:51:33,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:51:33,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:51:33,603 INFO L87 Difference]: Start difference. First operand 161 states and 217 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:51:34,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:51:34,848 INFO L93 Difference]: Finished difference Result 355 states and 480 transitions. [2024-11-24 01:51:34,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:51:34,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-24 01:51:34,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:51:34,851 INFO L225 Difference]: With dead ends: 355 [2024-11-24 01:51:34,851 INFO L226 Difference]: Without dead ends: 197 [2024-11-24 01:51:34,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:51:34,853 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 48 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:51:34,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 345 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:51:34,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-24 01:51:34,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 162. [2024-11-24 01:51:34,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 137 states have (on average 1.3284671532846715) internal successors, (182), 137 states have internal predecessors, (182), 18 states have call successors, (18), 6 states have call predecessors, (18), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:51:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 218 transitions. [2024-11-24 01:51:34,893 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 218 transitions. Word has length 86 [2024-11-24 01:51:34,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:51:34,893 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 218 transitions. [2024-11-24 01:51:34,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:51:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 218 transitions. [2024-11-24 01:51:34,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 01:51:34,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:51:34,895 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:51:34,904 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:51:35,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:51:35,096 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:51:35,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:51:35,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1522767668, now seen corresponding path program 1 times [2024-11-24 01:51:35,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:51:35,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1864915540] [2024-11-24 01:51:35,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:35,097 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 [2024-11-24 01:51:35,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:51:35,099 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:51:35,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:51:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:35,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 01:51:35,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:51:35,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2024-11-24 01:51:37,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-11-24 01:51:37,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-11-24 01:51:38,611 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2024-11-24 01:51:39,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 31 [2024-11-24 01:51:39,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 25 [2024-11-24 01:51:39,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:51:39,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 59 treesize of output 35 [2024-11-24 01:51:40,114 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 36 proven. 80 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-24 01:51:40,114 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:51:40,826 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:51:40,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1864915540] [2024-11-24 01:51:40,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1864915540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:51:40,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1915867360] [2024-11-24 01:51:40,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:51:40,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:51:40,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:51:40,829 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:51:40,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-24 01:51:42,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:51:42,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 51 conjuncts are in the unsatisfiable core [2024-11-24 01:51:42,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:51:42,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2024-11-24 01:51:47,124 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 28 treesize of output 30 [2024-11-24 01:51:50,119 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 51 [2024-11-24 01:51:51,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 62 [2024-11-24 01:51:53,280 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 63 [2024-11-24 01:51:55,034 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 75 [2024-11-24 01:51:55,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 86 [2024-11-24 01:52:02,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 65 [2024-11-24 01:52:02,870 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 52 proven. 80 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:52:02,870 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:52:14,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1915867360] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:52:14,209 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:52:14,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 25] total 38 [2024-11-24 01:52:14,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743901207] [2024-11-24 01:52:14,209 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:52:14,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-24 01:52:14,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:52:14,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-24 01:52:14,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=1921, Unknown=4, NotChecked=0, Total=2256 [2024-11-24 01:52:14,212 INFO L87 Difference]: Start difference. First operand 162 states and 218 transitions. Second operand has 39 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-24 01:52:25,313 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] [2024-11-24 01:52:33,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:52:37,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:52:41,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:52:45,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:52:50,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:52:54,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:03,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:07,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:12,467 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:16,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:20,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:24,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:28,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:33,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:37,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:41,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:53:55,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:53:55,121 INFO L93 Difference]: Finished difference Result 941 states and 1244 transitions. [2024-11-24 01:53:55,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-11-24 01:53:55,122 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) Word has length 86 [2024-11-24 01:53:55,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:53:55,126 INFO L225 Difference]: With dead ends: 941 [2024-11-24 01:53:55,127 INFO L226 Difference]: Without dead ends: 782 [2024-11-24 01:53:55,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 174 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2023 ImplicationChecksByTransitivity, 42.9s TimeCoverageRelationStatistics Valid=1325, Invalid=5979, Unknown=6, NotChecked=0, Total=7310 [2024-11-24 01:53:55,130 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 1921 mSDsluCounter, 1460 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 151 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 82.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1929 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 2261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 83.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:53:55,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1929 Valid, 1540 Invalid, 2261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 2093 Invalid, 17 Unknown, 0 Unchecked, 83.2s Time] [2024-11-24 01:53:55,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 782 states. [2024-11-24 01:53:55,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 782 to 606. [2024-11-24 01:53:55,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 606 states, 544 states have (on average 1.349264705882353) internal successors, (734), 547 states have internal predecessors, (734), 39 states have call successors, (39), 22 states have call predecessors, (39), 22 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 01:53:55,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 812 transitions. [2024-11-24 01:53:55,222 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 812 transitions. Word has length 86 [2024-11-24 01:53:55,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:53:55,223 INFO L471 AbstractCegarLoop]: Abstraction has 606 states and 812 transitions. [2024-11-24 01:53:55,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 35 states have (on average 3.0285714285714285) internal successors, (106), 33 states have internal predecessors, (106), 11 states have call successors, (18), 11 states have call predecessors, (18), 11 states have return successors, (18), 10 states have call predecessors, (18), 11 states have call successors, (18) [2024-11-24 01:53:55,223 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 812 transitions. [2024-11-24 01:53:55,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 01:53:55,224 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:53:55,224 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:53:55,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-24 01:53:55,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:53:55,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:53:55,625 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:53:55,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:53:55,625 INFO L85 PathProgramCache]: Analyzing trace with hash 652838670, now seen corresponding path program 1 times [2024-11-24 01:53:55,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:53:55,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1797288878] [2024-11-24 01:53:55,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:53:55,626 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 [2024-11-24 01:53:55,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:53:55,630 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:53:55,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:53:55,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:53:55,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 01:53:55,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:53:57,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2024-11-24 01:53:58,244 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:53:58,244 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 153 treesize of output 94 [2024-11-24 01:54:02,511 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:54:02,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 220 treesize of output 92 [2024-11-24 01:54:02,714 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 01:54:02,714 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:54:02,714 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:54:02,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1797288878] [2024-11-24 01:54:02,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1797288878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:54:02,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:54:02,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:54:02,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138237691] [2024-11-24 01:54:02,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:54:02,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:54:02,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:54:02,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:54:02,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=54, Unknown=1, NotChecked=0, Total=72 [2024-11-24 01:54:02,715 INFO L87 Difference]: Start difference. First operand 606 states and 812 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:54:09,433 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] [2024-11-24 01:54:24,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:54:24,158 INFO L93 Difference]: Finished difference Result 1176 states and 1585 transitions. [2024-11-24 01:54:24,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:54:24,160 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 86 [2024-11-24 01:54:24,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:54:24,165 INFO L225 Difference]: With dead ends: 1176 [2024-11-24 01:54:24,165 INFO L226 Difference]: Without dead ends: 841 [2024-11-24 01:54:24,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=43, Invalid=110, Unknown=3, NotChecked=0, Total=156 [2024-11-24 01:54:24,167 INFO L435 NwaCegarLoop]: 128 mSDtfsCounter, 252 mSDsluCounter, 425 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:54:24,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 553 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 586 Invalid, 1 Unknown, 0 Unchecked, 11.5s Time] [2024-11-24 01:54:24,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-24 01:54:24,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 609. [2024-11-24 01:54:24,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 547 states have (on average 1.3473491773308959) internal successors, (737), 550 states have internal predecessors, (737), 39 states have call successors, (39), 22 states have call predecessors, (39), 22 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 01:54:24,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 815 transitions. [2024-11-24 01:54:24,296 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 815 transitions. Word has length 86 [2024-11-24 01:54:24,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:54:24,296 INFO L471 AbstractCegarLoop]: Abstraction has 609 states and 815 transitions. [2024-11-24 01:54:24,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 8 states have internal predecessors, (44), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 01:54:24,297 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 815 transitions. [2024-11-24 01:54:24,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 01:54:24,298 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:54:24,298 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:54:24,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:54:24,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:54:24,499 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:54:24,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:54:24,499 INFO L85 PathProgramCache]: Analyzing trace with hash -368229684, now seen corresponding path program 1 times [2024-11-24 01:54:24,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:54:24,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1550630045] [2024-11-24 01:54:24,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:24,500 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 [2024-11-24 01:54:24,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:54:24,502 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:54:24,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 01:54:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:24,901 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-24 01:54:24,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:54:25,261 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 01:54:27,123 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 120 treesize of output 63 [2024-11-24 01:54:28,471 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 120 treesize of output 63 [2024-11-24 01:54:29,801 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 120 treesize of output 63 [2024-11-24 01:54:31,069 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 117 treesize of output 71 [2024-11-24 01:54:32,619 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-11-24 01:54:32,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 104 [2024-11-24 01:54:33,193 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:54:33,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 62 [2024-11-24 01:54:37,682 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:54:37,683 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 41 [2024-11-24 01:54:37,837 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-11-24 01:54:37,837 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:54:40,047 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:54:40,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1550630045] [2024-11-24 01:54:40,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1550630045] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:54:40,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1305556880] [2024-11-24 01:54:40,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:54:40,047 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:54:40,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:54:40,049 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:54:40,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2024-11-24 01:54:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:54:42,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-24 01:54:42,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:54:42,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 8 [2024-11-24 01:55:02,113 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 109 treesize of output 67 [2024-11-24 01:55:07,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 84 [2024-11-24 01:55:13,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 95 [2024-11-24 01:55:19,973 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 106 [2024-11-24 01:55:26,508 INFO L349 Elim1Store]: treesize reduction 91, result has 14.2 percent of original size [2024-11-24 01:55:26,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 7 case distinctions, treesize of input 128 treesize of output 133 [2024-11-24 01:55:35,392 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 36 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 139 treesize of output 129 [2024-11-24 01:55:44,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 91 [2024-11-24 01:55:48,518 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 56 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:55:48,519 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:55:49,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1305556880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:55:49,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:55:49,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 22 [2024-11-24 01:55:49,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774500520] [2024-11-24 01:55:49,038 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:55:49,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:55:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:55:49,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:55:49,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=581, Unknown=14, NotChecked=0, Total=702 [2024-11-24 01:55:49,041 INFO L87 Difference]: Start difference. First operand 609 states and 815 transitions. Second operand has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-24 01:56:54,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:56:58,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:10,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:14,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:18,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:23,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:27,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:31,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:35,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:39,313 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:43,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:47,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:51,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:57:55,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:00,012 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:04,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:13,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:17,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:21,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:25,727 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:30,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:34,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:38,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:42,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:47,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:51,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:55,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:58:59,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:03,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:07,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:11,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:15,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:21,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:25,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:29,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:33,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:59:41,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:59:41,147 INFO L93 Difference]: Finished difference Result 1215 states and 1636 transitions. [2024-11-24 01:59:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:59:41,148 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) Word has length 86 [2024-11-24 01:59:41,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:59:41,152 INFO L225 Difference]: With dead ends: 1215 [2024-11-24 01:59:41,152 INFO L226 Difference]: Without dead ends: 877 [2024-11-24 01:59:41,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 193 SyntacticMatches, 4 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 136.2s TimeCoverageRelationStatistics Valid=300, Invalid=1230, Unknown=30, NotChecked=0, Total=1560 [2024-11-24 01:59:41,154 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 1018 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 1552 mSolverCounterSat, 43 mSolverCounterUnsat, 39 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1190 SdHoareTripleChecker+Invalid, 1634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1552 IncrementalHoareTripleChecker+Invalid, 39 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 161.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:59:41,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 1190 Invalid, 1634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1552 Invalid, 39 Unknown, 0 Unchecked, 161.1s Time] [2024-11-24 01:59:41,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 877 states. [2024-11-24 01:59:41,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 877 to 618. [2024-11-24 01:59:41,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 556 states have (on average 1.3489208633093526) internal successors, (750), 559 states have internal predecessors, (750), 39 states have call successors, (39), 22 states have call predecessors, (39), 22 states have return successors, (39), 36 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-24 01:59:41,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 828 transitions. [2024-11-24 01:59:41,281 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 828 transitions. Word has length 86 [2024-11-24 01:59:41,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:59:41,282 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 828 transitions. [2024-11-24 01:59:41,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.8260869565217392) internal successors, (88), 22 states have internal predecessors, (88), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-24 01:59:41,282 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 828 transitions. [2024-11-24 01:59:41,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 01:59:41,284 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:59:41,284 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:59:41,292 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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)] Ended with exit code 0 [2024-11-24 01:59:41,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2024-11-24 01:59:41,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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=3,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 01:59:41,685 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:59:41,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:59:41,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1963105168, now seen corresponding path program 1 times [2024-11-24 01:59:41,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:59:41,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [642101724] [2024-11-24 01:59:41,686 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:41,686 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:59:41,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:59:41,688 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 01:59:41,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 (18)] Waiting until timeout for monitored process [2024-11-24 01:59:42,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:42,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-24 01:59:42,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:59:42,448 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 [2024-11-24 01:59:43,860 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 102 treesize of output 53 [2024-11-24 01:59:44,681 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 102 treesize of output 53 [2024-11-24 01:59:45,457 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 99 treesize of output 61 [2024-11-24 01:59:46,484 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2024-11-24 01:59:47,490 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-11-24 01:59:47,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 88 [2024-11-24 01:59:47,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:59:47,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 149 treesize of output 69 [2024-11-24 01:59:48,116 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 38 proven. 74 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 01:59:48,116 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:59:48,808 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:59:48,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [642101724] [2024-11-24 01:59:48,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [642101724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:59:48,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2120290038] [2024-11-24 01:59:48,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:59:48,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:59:48,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:59:48,811 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:59:48,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2024-11-24 01:59:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:59:51,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-24 01:59:51,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:59:54,120 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 102 treesize of output 53 [2024-11-24 01:59:55,034 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 102 treesize of output 53 [2024-11-24 01:59:55,953 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 99 treesize of output 61 [2024-11-24 01:59:57,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 64 [2024-11-24 01:59:58,571 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-11-24 01:59:58,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 112 treesize of output 88 [2024-11-24 01:59:59,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 149 treesize of output 69 [2024-11-24 01:59:59,598 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 38 proven. 74 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 01:59:59,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:00:00,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2120290038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:00:00,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:00:00,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2024-11-24 02:00:00,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588690410] [2024-11-24 02:00:00,216 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 02:00:00,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-24 02:00:00,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:00:00,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-24 02:00:00,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=780, Unknown=0, NotChecked=0, Total=930 [2024-11-24 02:00:00,218 INFO L87 Difference]: Start difference. First operand 618 states and 828 transitions. Second operand has 26 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 23 states have internal predecessors, (91), 8 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-24 02:00:11,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:11,401 INFO L93 Difference]: Finished difference Result 1664 states and 2225 transitions. [2024-11-24 02:00:11,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 02:00:11,402 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 23 states have internal predecessors, (91), 8 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) Word has length 86 [2024-11-24 02:00:11,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:11,407 INFO L225 Difference]: With dead ends: 1664 [2024-11-24 02:00:11,407 INFO L226 Difference]: Without dead ends: 1049 [2024-11-24 02:00:11,409 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 188 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=428, Invalid=1734, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 02:00:11,410 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 423 mSDsluCounter, 830 mSDsCounter, 0 mSdLazyCounter, 1421 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 423 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:11,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [423 Valid, 925 Invalid, 1447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1421 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-24 02:00:11,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2024-11-24 02:00:11,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 726. [2024-11-24 02:00:11,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 726 states, 635 states have (on average 1.3275590551181102) internal successors, (843), 638 states have internal predecessors, (843), 57 states have call successors, (57), 33 states have call predecessors, (57), 33 states have return successors, (57), 54 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-24 02:00:11,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 957 transitions. [2024-11-24 02:00:11,546 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 957 transitions. Word has length 86 [2024-11-24 02:00:11,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:11,547 INFO L471 AbstractCegarLoop]: Abstraction has 726 states and 957 transitions. [2024-11-24 02:00:11,547 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.7916666666666665) internal successors, (91), 23 states have internal predecessors, (91), 8 states have call successors, (18), 8 states have call predecessors, (18), 8 states have return successors, (18), 6 states have call predecessors, (18), 8 states have call successors, (18) [2024-11-24 02:00:11,547 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 957 transitions. [2024-11-24 02:00:11,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-24 02:00:11,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:11,550 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:11,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2024-11-24 02:00:11,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 (18)] Ended with exit code 0 [2024-11-24 02:00:11,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 02:00:11,950 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:11,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:11,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1124071506, now seen corresponding path program 1 times [2024-11-24 02:00:11,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:00:11,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1381933177] [2024-11-24 02:00:11,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:11,952 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 [2024-11-24 02:00:11,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:00:11,953 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 02:00:11,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 (20)] Waiting until timeout for monitored process [2024-11-24 02:00:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:12,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 02:00:12,233 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:00:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-24 02:00:12,294 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:00:12,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:00:12,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1381933177] [2024-11-24 02:00:12,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1381933177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:12,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:12,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 02:00:12,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171166522] [2024-11-24 02:00:12,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:12,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 02:00:12,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:00:12,295 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 02:00:12,295 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 02:00:12,295 INFO L87 Difference]: Start difference. First operand 726 states and 957 transitions. Second operand has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 02:00:12,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:12,665 INFO L93 Difference]: Finished difference Result 1357 states and 1780 transitions. [2024-11-24 02:00:12,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 02:00:12,666 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2024-11-24 02:00:12,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:12,669 INFO L225 Difference]: With dead ends: 1357 [2024-11-24 02:00:12,669 INFO L226 Difference]: Without dead ends: 604 [2024-11-24 02:00:12,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-24 02:00:12,671 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 1 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:12,671 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 588 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:00:12,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2024-11-24 02:00:12,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 417. [2024-11-24 02:00:12,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 357 states have (on average 1.2941176470588236) internal successors, (462), 357 states have internal predecessors, (462), 36 states have call successors, (36), 23 states have call predecessors, (36), 23 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 02:00:12,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 534 transitions. [2024-11-24 02:00:12,792 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 534 transitions. Word has length 86 [2024-11-24 02:00:12,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:12,792 INFO L471 AbstractCegarLoop]: Abstraction has 417 states and 534 transitions. [2024-11-24 02:00:12,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.4) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 02:00:12,792 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 534 transitions. [2024-11-24 02:00:12,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-24 02:00:12,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:12,794 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:12,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 (20)] Ended with exit code 0 [2024-11-24 02:00:12,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 [2024-11-24 02:00:12,995 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:12,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:12,995 INFO L85 PathProgramCache]: Analyzing trace with hash 1817032447, now seen corresponding path program 1 times [2024-11-24 02:00:12,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 02:00:12,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365232869] [2024-11-24 02:00:12,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:12,996 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 [2024-11-24 02:00:12,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 02:00:12,998 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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) [2024-11-24 02:00:13,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/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 (21)] Waiting until timeout for monitored process [2024-11-24 02:00:13,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:13,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 02:00:13,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:00:13,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-24 02:00:16,335 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 117 treesize of output 71 [2024-11-24 02:00:17,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 80 [2024-11-24 02:00:19,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 88 [2024-11-24 02:00:21,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 99 [2024-11-24 02:00:23,446 INFO L349 Elim1Store]: treesize reduction 79, result has 16.0 percent of original size [2024-11-24 02:00:23,447 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 128 treesize of output 126 [2024-11-24 02:00:24,192 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 68 [2024-11-24 02:00:24,569 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:00:24,569 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 28 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 69 treesize of output 76 [2024-11-24 02:00:33,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 02:00:33,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 45 [2024-11-24 02:00:33,195 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 56 proven. 56 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-24 02:00:33,195 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:00:51,450 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 02:00:51,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365232869] [2024-11-24 02:00:51,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365232869] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:00:51,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1536408483] [2024-11-24 02:00:51,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:51,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 02:00:51,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 02:00:51,454 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 02:00:51,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_320c6bb6-eee1-4860-ba65-e6f99a97dec7/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2024-11-24 02:00:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:53,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-24 02:00:53,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:00:54,372 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2024-11-24 02:01:13,182 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 104 treesize of output 55 [2024-11-24 02:01:14,727 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 104 treesize of output 55 [2024-11-24 02:01:16,278 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 101 treesize of output 63 [2024-11-24 02:01:22,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 66 [2024-11-24 02:01:24,519 INFO L349 Elim1Store]: treesize reduction 55, result has 21.4 percent of original size [2024-11-24 02:01:24,520 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 114 treesize of output 90 [2024-11-24 02:01:25,334 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 78 [2024-11-24 02:01:25,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 15 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 122 treesize of output 94 [2024-11-24 02:01:34,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 161 treesize of output 73 [2024-11-24 02:01:38,689 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 40 proven. 56 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-11-24 02:01:38,689 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 02:01:39,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1536408483] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:01:39,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 02:01:39,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 24 [2024-11-24 02:01:39,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262329834] [2024-11-24 02:01:39,621 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 02:01:39,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-24 02:01:39,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 02:01:39,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-24 02:01:39,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=729, Unknown=14, NotChecked=0, Total=870 [2024-11-24 02:01:39,632 INFO L87 Difference]: Start difference. First operand 417 states and 534 transitions. Second operand has 25 states, 25 states have (on average 3.6) internal successors, (90), 24 states have internal predecessors, (90), 7 states have call successors, (18), 7 states have call predecessors, (18), 7 states have return successors, (18), 7 states have call predecessors, (18), 7 states have call successors, (18) [2024-11-24 02:02:11,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:16,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:28,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:32,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:36,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:40,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:44,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:48,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:53,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:02:57,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:01,058 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:05,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:09,173 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:13,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:17,405 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:21,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:25,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:29,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:38,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:42,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:46,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:50,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:55,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:03:59,192 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:03,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:07,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:11,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:16,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:20,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:24,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:28,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:32,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:36,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:40,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 02:04:45,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]