./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.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_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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_92965b28-808d-4082-8c81-1f669970c356/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 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:10:32,081 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:10:32,167 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:10:32,173 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:10:32,173 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:10:32,216 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:10:32,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:10:32,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:10:32,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:10:32,219 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:10:32,219 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:10:32,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:10:32,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:10:32,221 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:10:32,221 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:10:32,221 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:10:32,221 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:10:32,221 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:10:32,222 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:10:32,222 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:10:32,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:10:32,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:10:32,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:10:32,223 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:10:32,223 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:10:32,223 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:10:32,223 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:10:32,223 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:10:32,223 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:10:32,223 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:10:32,225 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:10:32,225 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:10:32,225 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:10:32,225 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:10:32,226 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:10:32,226 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:10:32,226 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:10:32,226 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:10:32,226 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_92965b28-808d-4082-8c81-1f669970c356/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 -> 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d [2024-11-24 01:10:32,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:10:32,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:10:32,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:10:32,568 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:10:32,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:10:32,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-11-24 01:10:35,620 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data/b81e747df/488344355a86483cb14aff0e1535f124/FLAG551f57106 [2024-11-24 01:10:35,895 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:10:35,896 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-11-24 01:10:35,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data/b81e747df/488344355a86483cb14aff0e1535f124/FLAG551f57106 [2024-11-24 01:10:35,918 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data/b81e747df/488344355a86483cb14aff0e1535f124 [2024-11-24 01:10:35,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:10:35,922 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:10:35,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:10:35,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:10:35,928 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:10:35,929 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:10:35" (1/1) ... [2024-11-24 01:10:35,930 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dc19c3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:35, skipping insertion in model container [2024-11-24 01:10:35,931 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:10:35" (1/1) ... [2024-11-24 01:10:35,955 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:10:36,114 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_92965b28-808d-4082-8c81-1f669970c356/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-11-24 01:10:36,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:10:36,194 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:10:36,205 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_92965b28-808d-4082-8c81-1f669970c356/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-11-24 01:10:36,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:10:36,298 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:10:36,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36 WrapperNode [2024-11-24 01:10:36,299 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:10:36,300 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:10:36,301 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:10:36,301 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:10:36,312 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,337 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,410 INFO L138 Inliner]: procedures = 30, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 423 [2024-11-24 01:10:36,410 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:10:36,411 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:10:36,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:10:36,412 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:10:36,422 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,432 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,445 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-24 01:10:36,446 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,446 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,465 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,466 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,474 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,480 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,482 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,497 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:10:36,498 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:10:36,498 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:10:36,498 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:10:36,499 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (1/1) ... [2024-11-24 01:10:36,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:10:36,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:36,541 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:10:36,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:10:36,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:10:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 01:10:36,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:10:36,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:10:36,722 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:10:36,724 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:10:37,599 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-24 01:10:37,600 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:10:37,620 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:10:37,620 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:10:37,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:10:37 BoogieIcfgContainer [2024-11-24 01:10:37,621 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:10:37,623 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:10:37,623 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:10:37,630 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:10:37,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:10:35" (1/3) ... [2024-11-24 01:10:37,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf0038d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:10:37, skipping insertion in model container [2024-11-24 01:10:37,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:10:36" (2/3) ... [2024-11-24 01:10:37,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cf0038d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:10:37, skipping insertion in model container [2024-11-24 01:10:37,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:10:37" (3/3) ... [2024-11-24 01:10:37,635 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-84.i [2024-11-24 01:10:37,653 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:10:37,655 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-84.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:10:37,728 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:10:37,744 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;@7fd69c6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:10:37,745 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:10:37,750 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:10:37,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 01:10:37,765 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:37,766 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:37,766 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:37,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:37,772 INFO L85 PathProgramCache]: Analyzing trace with hash 924800917, now seen corresponding path program 1 times [2024-11-24 01:10:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:37,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297515633] [2024-11-24 01:10:37,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:37,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-24 01:10:38,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:38,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297515633] [2024-11-24 01:10:38,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297515633] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:10:38,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1616760688] [2024-11-24 01:10:38,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:38,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:10:38,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:10:38,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:10:38,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:10:38,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:38,718 INFO L256 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:10:38,728 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:10:38,769 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-24 01:10:38,769 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:10:38,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1616760688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:38,769 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:10:38,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:10:38,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427141355] [2024-11-24 01:10:38,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:38,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:10:38,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:38,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:10:38,803 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:10:38,805 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:10:38,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:38,846 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-11-24 01:10:38,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:10:38,848 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-11-24 01:10:38,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:38,856 INFO L225 Difference]: With dead ends: 199 [2024-11-24 01:10:38,856 INFO L226 Difference]: Without dead ends: 99 [2024-11-24 01:10:38,859 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:10:38,862 INFO L435 NwaCegarLoop]: 141 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, 141 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 01:10:38,863 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:10:38,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-24 01:10:38,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-24 01:10:38,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 77 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:10:38,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-11-24 01:10:38,903 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 150 [2024-11-24 01:10:38,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:38,905 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-11-24 01:10:38,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:10:38,906 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-11-24 01:10:38,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 01:10:38,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:38,912 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:38,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:10:39,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:10:39,113 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:39,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:39,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1032707065, now seen corresponding path program 1 times [2024-11-24 01:10:39,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:39,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367989431] [2024-11-24 01:10:39,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:39,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:39,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:39,719 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:10:39,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:39,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367989431] [2024-11-24 01:10:39,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367989431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:39,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:39,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:10:39,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902927848] [2024-11-24 01:10:39,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:39,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:10:39,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:39,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:10:39,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:10:39,726 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:10:39,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:39,793 INFO L93 Difference]: Finished difference Result 198 states and 283 transitions. [2024-11-24 01:10:39,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:10:39,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-24 01:10:39,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:39,796 INFO L225 Difference]: With dead ends: 198 [2024-11-24 01:10:39,797 INFO L226 Difference]: Without dead ends: 102 [2024-11-24 01:10:39,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:10:39,798 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 1 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 405 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 01:10:39,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 405 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:10:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2024-11-24 01:10:39,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2024-11-24 01:10:39,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 79 states have (on average 1.3037974683544304) internal successors, (103), 79 states have internal predecessors, (103), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:10:39,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 143 transitions. [2024-11-24 01:10:39,811 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 143 transitions. Word has length 150 [2024-11-24 01:10:39,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:39,812 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 143 transitions. [2024-11-24 01:10:39,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:10:39,812 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 143 transitions. [2024-11-24 01:10:39,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 01:10:39,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:39,815 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:39,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:10:39,815 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:39,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:39,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1034554107, now seen corresponding path program 1 times [2024-11-24 01:10:39,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:39,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573992080] [2024-11-24 01:10:39,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:39,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:10:41,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:41,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573992080] [2024-11-24 01:10:41,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573992080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:41,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:41,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:10:41,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319581978] [2024-11-24 01:10:41,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:41,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:10:41,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:41,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:10:41,020 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:10:41,021 INFO L87 Difference]: Start difference. First operand 101 states and 143 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:10:41,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:41,924 INFO L93 Difference]: Finished difference Result 324 states and 459 transitions. [2024-11-24 01:10:41,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:10:41,925 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-24 01:10:41,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:41,928 INFO L225 Difference]: With dead ends: 324 [2024-11-24 01:10:41,928 INFO L226 Difference]: Without dead ends: 226 [2024-11-24 01:10:41,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:10:41,929 INFO L435 NwaCegarLoop]: 82 mSDtfsCounter, 194 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:41,930 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 321 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:10:41,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-24 01:10:41,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 199. [2024-11-24 01:10:41,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 156 states have (on average 1.294871794871795) internal successors, (202), 156 states have internal predecessors, (202), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:10:41,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 282 transitions. [2024-11-24 01:10:41,958 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 282 transitions. Word has length 150 [2024-11-24 01:10:41,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:41,959 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 282 transitions. [2024-11-24 01:10:41,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 5 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:10:41,960 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 282 transitions. [2024-11-24 01:10:41,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 01:10:41,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:41,962 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:41,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:10:41,963 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:41,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:41,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2120166937, now seen corresponding path program 1 times [2024-11-24 01:10:41,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:41,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063528992] [2024-11-24 01:10:41,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:41,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:46,819 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:10:46,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:46,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063528992] [2024-11-24 01:10:46,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063528992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:46,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:46,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:10:46,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201165436] [2024-11-24 01:10:46,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:46,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:10:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:46,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:10:46,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:10:46,824 INFO L87 Difference]: Start difference. First operand 199 states and 282 transitions. Second operand has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:10:50,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:50,575 INFO L93 Difference]: Finished difference Result 625 states and 877 transitions. [2024-11-24 01:10:50,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:10:50,576 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-11-24 01:10:50,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:50,584 INFO L225 Difference]: With dead ends: 625 [2024-11-24 01:10:50,585 INFO L226 Difference]: Without dead ends: 429 [2024-11-24 01:10:50,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=87, Invalid=465, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:10:50,590 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 167 mSDsluCounter, 1438 mSDsCounter, 0 mSdLazyCounter, 1187 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1577 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:50,591 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1577 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1187 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 01:10:50,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-24 01:10:50,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 229. [2024-11-24 01:10:50,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 186 states have (on average 1.3064516129032258) internal successors, (243), 186 states have internal predecessors, (243), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:10:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 323 transitions. [2024-11-24 01:10:50,638 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 323 transitions. Word has length 158 [2024-11-24 01:10:50,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:50,639 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 323 transitions. [2024-11-24 01:10:50,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.357142857142857) internal successors, (61), 16 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:10:50,640 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 323 transitions. [2024-11-24 01:10:50,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 01:10:50,645 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:50,645 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:50,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:10:50,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:50,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:50,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1752098533, now seen corresponding path program 1 times [2024-11-24 01:10:50,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:50,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820298848] [2024-11-24 01:10:50,647 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:50,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:54,251 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:10:54,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:54,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820298848] [2024-11-24 01:10:54,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820298848] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:54,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:54,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:10:54,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800031191] [2024-11-24 01:10:54,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:54,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:10:54,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:54,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:10:54,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:10:54,254 INFO L87 Difference]: Start difference. First operand 229 states and 323 transitions. Second operand has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:10:55,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:10:55,840 INFO L93 Difference]: Finished difference Result 535 states and 753 transitions. [2024-11-24 01:10:55,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:10:55,842 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 158 [2024-11-24 01:10:55,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:10:55,845 INFO L225 Difference]: With dead ends: 535 [2024-11-24 01:10:55,846 INFO L226 Difference]: Without dead ends: 309 [2024-11-24 01:10:55,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2024-11-24 01:10:55,849 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 60 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:10:55,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 853 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:10:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-24 01:10:55,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 233. [2024-11-24 01:10:55,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 190 states have (on average 1.3105263157894738) internal successors, (249), 190 states have internal predecessors, (249), 40 states have call successors, (40), 2 states have call predecessors, (40), 2 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:10:55,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 329 transitions. [2024-11-24 01:10:55,887 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 329 transitions. Word has length 158 [2024-11-24 01:10:55,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:10:55,887 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 329 transitions. [2024-11-24 01:10:55,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.083333333333333) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:10:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 329 transitions. [2024-11-24 01:10:55,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:10:55,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:10:55,891 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:10:55,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:10:55,893 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:10:55,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:10:55,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1171616002, now seen corresponding path program 1 times [2024-11-24 01:10:55,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:10:55,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362465654] [2024-11-24 01:10:55,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:10:55,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:10:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:10:58,382 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:10:58,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:10:58,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362465654] [2024-11-24 01:10:58,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362465654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:10:58,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:10:58,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:10:58,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506718535] [2024-11-24 01:10:58,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:10:58,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:10:58,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:10:58,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:10:58,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:10:58,385 INFO L87 Difference]: Start difference. First operand 233 states and 329 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:00,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:00,220 INFO L93 Difference]: Finished difference Result 577 states and 807 transitions. [2024-11-24 01:11:00,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:11:00,221 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-24 01:11:00,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:00,224 INFO L225 Difference]: With dead ends: 577 [2024-11-24 01:11:00,224 INFO L226 Difference]: Without dead ends: 347 [2024-11-24 01:11:00,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:11:00,226 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 55 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:00,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 793 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:11:00,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2024-11-24 01:11:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 343. [2024-11-24 01:11:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 343 states, 294 states have (on average 1.3197278911564625) internal successors, (388), 296 states have internal predecessors, (388), 44 states have call successors, (44), 4 states have call predecessors, (44), 4 states have return successors, (44), 42 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-24 01:11:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 343 states and 476 transitions. [2024-11-24 01:11:00,254 INFO L78 Accepts]: Start accepts. Automaton has 343 states and 476 transitions. Word has length 160 [2024-11-24 01:11:00,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:00,254 INFO L471 AbstractCegarLoop]: Abstraction has 343 states and 476 transitions. [2024-11-24 01:11:00,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:00,255 INFO L276 IsEmpty]: Start isEmpty. Operand 343 states and 476 transitions. [2024-11-24 01:11:00,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:00,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:00,257 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:00,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:11:00,257 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:00,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:00,258 INFO L85 PathProgramCache]: Analyzing trace with hash 269132564, now seen corresponding path program 1 times [2024-11-24 01:11:00,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:00,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394271823] [2024-11-24 01:11:00,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:00,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:00,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:03,093 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:03,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:03,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394271823] [2024-11-24 01:11:03,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394271823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:03,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:03,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-24 01:11:03,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971868143] [2024-11-24 01:11:03,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:03,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:11:03,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:03,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:11:03,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:11:03,096 INFO L87 Difference]: Start difference. First operand 343 states and 476 transitions. Second operand has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:04,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:04,614 INFO L93 Difference]: Finished difference Result 1095 states and 1498 transitions. [2024-11-24 01:11:04,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:11:04,615 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-24 01:11:04,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:04,621 INFO L225 Difference]: With dead ends: 1095 [2024-11-24 01:11:04,621 INFO L226 Difference]: Without dead ends: 755 [2024-11-24 01:11:04,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:11:04,623 INFO L435 NwaCegarLoop]: 149 mSDtfsCounter, 114 mSDsluCounter, 752 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:04,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 901 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 01:11:04,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 755 states. [2024-11-24 01:11:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 755 to 589. [2024-11-24 01:11:04,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 589 states, 524 states have (on average 1.3187022900763359) internal successors, (691), 530 states have internal predecessors, (691), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-24 01:11:04,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 589 states to 589 states and 803 transitions. [2024-11-24 01:11:04,698 INFO L78 Accepts]: Start accepts. Automaton has 589 states and 803 transitions. Word has length 160 [2024-11-24 01:11:04,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:04,699 INFO L471 AbstractCegarLoop]: Abstraction has 589 states and 803 transitions. [2024-11-24 01:11:04,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 7.875) internal successors, (63), 10 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:04,699 INFO L276 IsEmpty]: Start isEmpty. Operand 589 states and 803 transitions. [2024-11-24 01:11:04,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:04,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:04,702 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:04,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:11:04,702 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:04,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:04,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1129206588, now seen corresponding path program 1 times [2024-11-24 01:11:04,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:04,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865016766] [2024-11-24 01:11:04,703 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:04,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:05,040 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:05,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:05,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865016766] [2024-11-24 01:11:05,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865016766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:05,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:05,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:11:05,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014242360] [2024-11-24 01:11:05,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:05,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:11:05,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:05,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:11:05,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:11:05,042 INFO L87 Difference]: Start difference. First operand 589 states and 803 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:11:05,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:05,519 INFO L93 Difference]: Finished difference Result 1495 states and 2011 transitions. [2024-11-24 01:11:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:11:05,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:11:05,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:05,528 INFO L225 Difference]: With dead ends: 1495 [2024-11-24 01:11:05,529 INFO L226 Difference]: Without dead ends: 909 [2024-11-24 01:11:05,530 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:11:05,531 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 46 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:05,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 432 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:11:05,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-11-24 01:11:05,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 597. [2024-11-24 01:11:05,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 597 states, 532 states have (on average 1.3139097744360901) internal successors, (699), 538 states have internal predecessors, (699), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-24 01:11:05,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 811 transitions. [2024-11-24 01:11:05,615 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 811 transitions. Word has length 160 [2024-11-24 01:11:05,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:05,615 INFO L471 AbstractCegarLoop]: Abstraction has 597 states and 811 transitions. [2024-11-24 01:11:05,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:11:05,619 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 811 transitions. [2024-11-24 01:11:05,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:05,621 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:05,622 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:05,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:11:05,622 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:05,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:05,622 INFO L85 PathProgramCache]: Analyzing trace with hash -150657090, now seen corresponding path program 1 times [2024-11-24 01:11:05,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:05,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90107060] [2024-11-24 01:11:05,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:05,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:07,752 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:07,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:07,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90107060] [2024-11-24 01:11:07,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90107060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:07,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:07,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:11:07,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303956920] [2024-11-24 01:11:07,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:07,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:11:07,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:07,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:11:07,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:11:07,755 INFO L87 Difference]: Start difference. First operand 597 states and 811 transitions. Second operand has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:08,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:08,723 INFO L93 Difference]: Finished difference Result 1537 states and 2071 transitions. [2024-11-24 01:11:08,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:11:08,724 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-24 01:11:08,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:08,729 INFO L225 Difference]: With dead ends: 1537 [2024-11-24 01:11:08,729 INFO L226 Difference]: Without dead ends: 943 [2024-11-24 01:11:08,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:11:08,733 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 53 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:08,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 570 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:11:08,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 943 states. [2024-11-24 01:11:08,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 943 to 655. [2024-11-24 01:11:08,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 590 states have (on average 1.3135593220338984) internal successors, (775), 596 states have internal predecessors, (775), 56 states have call successors, (56), 8 states have call predecessors, (56), 8 states have return successors, (56), 50 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-24 01:11:08,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 887 transitions. [2024-11-24 01:11:08,799 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 887 transitions. Word has length 160 [2024-11-24 01:11:08,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:08,801 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 887 transitions. [2024-11-24 01:11:08,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:08,802 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 887 transitions. [2024-11-24 01:11:08,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:08,807 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:08,807 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:08,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:11:08,807 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:08,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:08,808 INFO L85 PathProgramCache]: Analyzing trace with hash 409681174, now seen corresponding path program 1 times [2024-11-24 01:11:08,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:08,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172987237] [2024-11-24 01:11:08,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:08,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:08,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:09,854 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:09,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:09,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172987237] [2024-11-24 01:11:09,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172987237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:09,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:09,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:11:09,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680070633] [2024-11-24 01:11:09,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:09,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:11:09,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:09,857 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:11:09,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:11:09,857 INFO L87 Difference]: Start difference. First operand 655 states and 887 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:11:10,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:10,502 INFO L93 Difference]: Finished difference Result 1344 states and 1816 transitions. [2024-11-24 01:11:10,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:11:10,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 160 [2024-11-24 01:11:10,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:10,506 INFO L225 Difference]: With dead ends: 1344 [2024-11-24 01:11:10,507 INFO L226 Difference]: Without dead ends: 692 [2024-11-24 01:11:10,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:11:10,509 INFO L435 NwaCegarLoop]: 182 mSDtfsCounter, 104 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:10,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 534 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:11:10,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2024-11-24 01:11:10,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 688. [2024-11-24 01:11:10,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 608 states have (on average 1.2976973684210527) internal successors, (789), 615 states have internal predecessors, (789), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 61 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-24 01:11:10,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 925 transitions. [2024-11-24 01:11:10,571 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 925 transitions. Word has length 160 [2024-11-24 01:11:10,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:10,573 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 925 transitions. [2024-11-24 01:11:10,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:11:10,573 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 925 transitions. [2024-11-24 01:11:10,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:10,575 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:10,576 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:10,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:11:10,576 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:10,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:10,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1545951006, now seen corresponding path program 1 times [2024-11-24 01:11:10,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:10,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814963791] [2024-11-24 01:11:10,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:10,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:10,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:12,649 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:12,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:12,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814963791] [2024-11-24 01:11:12,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814963791] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:12,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:12,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:11:12,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858912134] [2024-11-24 01:11:12,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:12,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:11:12,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:12,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:11:12,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:11:12,651 INFO L87 Difference]: Start difference. First operand 688 states and 925 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:14,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:14,463 INFO L93 Difference]: Finished difference Result 1506 states and 2014 transitions. [2024-11-24 01:11:14,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:11:14,463 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-24 01:11:14,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:14,468 INFO L225 Difference]: With dead ends: 1506 [2024-11-24 01:11:14,468 INFO L226 Difference]: Without dead ends: 834 [2024-11-24 01:11:14,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:11:14,471 INFO L435 NwaCegarLoop]: 155 mSDtfsCounter, 53 mSDsluCounter, 792 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 947 SdHoareTripleChecker+Invalid, 722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:14,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 947 Invalid, 722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 01:11:14,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-24 01:11:14,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 688. [2024-11-24 01:11:14,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 608 states have (on average 1.2911184210526316) internal successors, (785), 615 states have internal predecessors, (785), 68 states have call successors, (68), 11 states have call predecessors, (68), 11 states have return successors, (68), 61 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-24 01:11:14,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 921 transitions. [2024-11-24 01:11:14,529 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 921 transitions. Word has length 160 [2024-11-24 01:11:14,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:14,531 INFO L471 AbstractCegarLoop]: Abstraction has 688 states and 921 transitions. [2024-11-24 01:11:14,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:14,532 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 921 transitions. [2024-11-24 01:11:14,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:14,534 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:14,534 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:14,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:11:14,535 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:14,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:14,535 INFO L85 PathProgramCache]: Analyzing trace with hash -1148983748, now seen corresponding path program 1 times [2024-11-24 01:11:14,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:14,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367351450] [2024-11-24 01:11:14,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:14,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:16,647 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:16,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:16,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367351450] [2024-11-24 01:11:16,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367351450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:16,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:16,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:11:16,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962400269] [2024-11-24 01:11:16,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:16,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:11:16,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:16,651 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:11:16,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:11:16,652 INFO L87 Difference]: Start difference. First operand 688 states and 921 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:18,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:18,696 INFO L93 Difference]: Finished difference Result 1662 states and 2204 transitions. [2024-11-24 01:11:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:11:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-24 01:11:18,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:18,702 INFO L225 Difference]: With dead ends: 1662 [2024-11-24 01:11:18,702 INFO L226 Difference]: Without dead ends: 990 [2024-11-24 01:11:18,703 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:11:18,704 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 61 mSDsluCounter, 848 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 1002 SdHoareTripleChecker+Invalid, 873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:18,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 1002 Invalid, 873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:11:18,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2024-11-24 01:11:18,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 836. [2024-11-24 01:11:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 740 states have (on average 1.2743243243243243) internal successors, (943), 751 states have internal predecessors, (943), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-24 01:11:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1103 transitions. [2024-11-24 01:11:18,789 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1103 transitions. Word has length 160 [2024-11-24 01:11:18,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:18,790 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1103 transitions. [2024-11-24 01:11:18,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:18,790 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1103 transitions. [2024-11-24 01:11:18,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:18,793 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:18,793 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:18,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:11:18,794 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:18,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:18,795 INFO L85 PathProgramCache]: Analyzing trace with hash -128024836, now seen corresponding path program 1 times [2024-11-24 01:11:18,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:18,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472832019] [2024-11-24 01:11:18,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:18,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:20,816 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:20,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:20,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472832019] [2024-11-24 01:11:20,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472832019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:20,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:20,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:11:20,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959702702] [2024-11-24 01:11:20,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:20,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:11:20,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:20,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:11:20,817 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:11:20,818 INFO L87 Difference]: Start difference. First operand 836 states and 1103 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:22,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:22,813 INFO L93 Difference]: Finished difference Result 1782 states and 2346 transitions. [2024-11-24 01:11:22,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:11:22,814 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-24 01:11:22,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:22,818 INFO L225 Difference]: With dead ends: 1782 [2024-11-24 01:11:22,818 INFO L226 Difference]: Without dead ends: 962 [2024-11-24 01:11:22,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:11:22,821 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 55 mSDsluCounter, 951 mSDsCounter, 0 mSdLazyCounter, 917 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 917 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:22,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1124 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 917 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:11:22,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-11-24 01:11:22,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 818. [2024-11-24 01:11:22,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 722 states have (on average 1.2700831024930748) internal successors, (917), 733 states have internal predecessors, (917), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-24 01:11:22,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1077 transitions. [2024-11-24 01:11:22,888 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1077 transitions. Word has length 160 [2024-11-24 01:11:22,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:22,889 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1077 transitions. [2024-11-24 01:11:22,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:22,889 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1077 transitions. [2024-11-24 01:11:22,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:22,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:22,892 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:22,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:11:22,893 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:22,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:22,893 INFO L85 PathProgramCache]: Analyzing trace with hash 1568583260, now seen corresponding path program 1 times [2024-11-24 01:11:22,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:22,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134176376] [2024-11-24 01:11:22,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:22,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:22,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:23,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:23,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134176376] [2024-11-24 01:11:23,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134176376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:23,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:23,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:11:23,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604950490] [2024-11-24 01:11:23,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:23,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:11:23,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:23,319 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:11:23,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:11:23,320 INFO L87 Difference]: Start difference. First operand 818 states and 1077 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:11:23,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:23,724 INFO L93 Difference]: Finished difference Result 1620 states and 2135 transitions. [2024-11-24 01:11:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:11:23,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:11:23,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:23,728 INFO L225 Difference]: With dead ends: 1620 [2024-11-24 01:11:23,729 INFO L226 Difference]: Without dead ends: 818 [2024-11-24 01:11:23,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 01:11:23,731 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:23,731 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 428 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:11:23,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2024-11-24 01:11:23,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 818. [2024-11-24 01:11:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 818 states, 722 states have (on average 1.2673130193905817) internal successors, (915), 733 states have internal predecessors, (915), 80 states have call successors, (80), 15 states have call predecessors, (80), 15 states have return successors, (80), 69 states have call predecessors, (80), 80 states have call successors, (80) [2024-11-24 01:11:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 818 states to 818 states and 1075 transitions. [2024-11-24 01:11:23,799 INFO L78 Accepts]: Start accepts. Automaton has 818 states and 1075 transitions. Word has length 160 [2024-11-24 01:11:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:23,800 INFO L471 AbstractCegarLoop]: Abstraction has 818 states and 1075 transitions. [2024-11-24 01:11:23,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:11:23,801 INFO L276 IsEmpty]: Start isEmpty. Operand 818 states and 1075 transitions. [2024-11-24 01:11:23,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:23,803 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:23,803 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:23,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:11:23,804 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:23,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:23,804 INFO L85 PathProgramCache]: Analyzing trace with hash -803156002, now seen corresponding path program 1 times [2024-11-24 01:11:23,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:23,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428795553] [2024-11-24 01:11:23,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:23,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:25,726 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:25,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:25,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428795553] [2024-11-24 01:11:25,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428795553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:25,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:25,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 01:11:25,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396035216] [2024-11-24 01:11:25,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:25,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:11:25,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:25,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:11:25,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:11:25,728 INFO L87 Difference]: Start difference. First operand 818 states and 1075 transitions. Second operand has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:26,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:26,818 INFO L93 Difference]: Finished difference Result 1813 states and 2377 transitions. [2024-11-24 01:11:26,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:11:26,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-24 01:11:26,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:26,823 INFO L225 Difference]: With dead ends: 1813 [2024-11-24 01:11:26,823 INFO L226 Difference]: Without dead ends: 1011 [2024-11-24 01:11:26,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:11:26,826 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 53 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:26,826 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 693 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:11:26,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1011 states. [2024-11-24 01:11:26,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1011 to 793. [2024-11-24 01:11:26,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 699 states have (on average 1.2660944206008584) internal successors, (885), 709 states have internal predecessors, (885), 78 states have call successors, (78), 15 states have call predecessors, (78), 15 states have return successors, (78), 68 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-24 01:11:26,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1041 transitions. [2024-11-24 01:11:26,895 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1041 transitions. Word has length 160 [2024-11-24 01:11:26,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:26,896 INFO L471 AbstractCegarLoop]: Abstraction has 793 states and 1041 transitions. [2024-11-24 01:11:26,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.5) internal successors, (63), 8 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:26,896 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1041 transitions. [2024-11-24 01:11:26,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:11:26,898 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:26,899 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:11:26,899 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:26,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1824224356, now seen corresponding path program 1 times [2024-11-24 01:11:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367881375] [2024-11-24 01:11:26,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:28,581 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:28,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:28,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367881375] [2024-11-24 01:11:28,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367881375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:28,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:28,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-24 01:11:28,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69735346] [2024-11-24 01:11:28,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:28,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-24 01:11:28,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:28,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-24 01:11:28,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:11:28,583 INFO L87 Difference]: Start difference. First operand 793 states and 1041 transitions. Second operand has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:30,130 INFO L93 Difference]: Finished difference Result 1758 states and 2293 transitions. [2024-11-24 01:11:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:11:30,131 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 160 [2024-11-24 01:11:30,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:30,135 INFO L225 Difference]: With dead ends: 1758 [2024-11-24 01:11:30,135 INFO L226 Difference]: Without dead ends: 981 [2024-11-24 01:11:30,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:11:30,138 INFO L435 NwaCegarLoop]: 158 mSDtfsCounter, 57 mSDsluCounter, 723 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:30,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 881 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:11:30,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 981 states. [2024-11-24 01:11:30,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 981 to 958. [2024-11-24 01:11:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 958 states, 845 states have (on average 1.2579881656804734) internal successors, (1063), 858 states have internal predecessors, (1063), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:11:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 958 states to 958 states and 1243 transitions. [2024-11-24 01:11:30,226 INFO L78 Accepts]: Start accepts. Automaton has 958 states and 1243 transitions. Word has length 160 [2024-11-24 01:11:30,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:30,227 INFO L471 AbstractCegarLoop]: Abstraction has 958 states and 1243 transitions. [2024-11-24 01:11:30,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 7.0) internal successors, (63), 11 states have internal predecessors, (63), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 958 states and 1243 transitions. [2024-11-24 01:11:30,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:11:30,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:30,229 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:30,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:11:30,229 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:30,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:30,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1092955930, now seen corresponding path program 1 times [2024-11-24 01:11:30,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:30,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523894094] [2024-11-24 01:11:30,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:30,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:30,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2024-11-24 01:11:30,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:30,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523894094] [2024-11-24 01:11:30,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523894094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:11:30,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331534969] [2024-11-24 01:11:30,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:30,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:11:30,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:11:30,472 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:11:30,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:11:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:30,792 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:11:30,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:11:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:30,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:11:30,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331534969] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:30,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:11:30,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2024-11-24 01:11:30,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189241861] [2024-11-24 01:11:30,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:30,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:11:30,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:30,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:11:30,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:11:30,851 INFO L87 Difference]: Start difference. First operand 958 states and 1243 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:11:30,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:30,962 INFO L93 Difference]: Finished difference Result 1958 states and 2543 transitions. [2024-11-24 01:11:30,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:11:30,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-24 01:11:30,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:30,967 INFO L225 Difference]: With dead ends: 1958 [2024-11-24 01:11:30,967 INFO L226 Difference]: Without dead ends: 1003 [2024-11-24 01:11:30,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 01:11:30,970 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:30,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:11:30,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-24 01:11:31,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 1003. [2024-11-24 01:11:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 890 states have (on average 1.2449438202247192) internal successors, (1108), 903 states have internal predecessors, (1108), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:11:31,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1288 transitions. [2024-11-24 01:11:31,062 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1288 transitions. Word has length 162 [2024-11-24 01:11:31,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:31,063 INFO L471 AbstractCegarLoop]: Abstraction has 1003 states and 1288 transitions. [2024-11-24 01:11:31,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:11:31,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1288 transitions. [2024-11-24 01:11:31,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:11:31,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:31,067 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:31,077 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:11:31,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-24 01:11:31,268 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:31,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:31,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1057655491, now seen corresponding path program 1 times [2024-11-24 01:11:31,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:31,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137702970] [2024-11-24 01:11:31,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:31,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:33,976 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:33,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:33,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137702970] [2024-11-24 01:11:33,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137702970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:33,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:33,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:11:33,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346022739] [2024-11-24 01:11:33,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:33,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:11:33,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:33,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:11:33,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:11:33,978 INFO L87 Difference]: Start difference. First operand 1003 states and 1288 transitions. Second operand has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:36,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:36,212 INFO L93 Difference]: Finished difference Result 2185 states and 2804 transitions. [2024-11-24 01:11:36,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:11:36,213 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-24 01:11:36,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:36,226 INFO L225 Difference]: With dead ends: 2185 [2024-11-24 01:11:36,226 INFO L226 Difference]: Without dead ends: 1185 [2024-11-24 01:11:36,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:11:36,231 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 52 mSDsluCounter, 1476 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 1171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:36,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 1626 Invalid, 1171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:11:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1185 states. [2024-11-24 01:11:36,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1185 to 1063. [2024-11-24 01:11:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1063 states, 950 states have (on average 1.2463157894736843) internal successors, (1184), 963 states have internal predecessors, (1184), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:11:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1364 transitions. [2024-11-24 01:11:36,363 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1364 transitions. Word has length 162 [2024-11-24 01:11:36,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:36,364 INFO L471 AbstractCegarLoop]: Abstraction has 1063 states and 1364 transitions. [2024-11-24 01:11:36,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:36,364 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1364 transitions. [2024-11-24 01:11:36,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:11:36,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:36,366 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:36,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:11:36,367 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:36,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:36,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1851108411, now seen corresponding path program 1 times [2024-11-24 01:11:36,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:36,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352076050] [2024-11-24 01:11:36,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:36,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:37,390 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:37,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:37,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352076050] [2024-11-24 01:11:37,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352076050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:37,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:37,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:11:37,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756996664] [2024-11-24 01:11:37,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:37,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:11:37,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:37,392 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:11:37,392 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:11:37,392 INFO L87 Difference]: Start difference. First operand 1063 states and 1364 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:11:37,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:37,947 INFO L93 Difference]: Finished difference Result 2055 states and 2637 transitions. [2024-11-24 01:11:37,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:11:37,947 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 162 [2024-11-24 01:11:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:37,952 INFO L225 Difference]: With dead ends: 2055 [2024-11-24 01:11:37,952 INFO L226 Difference]: Without dead ends: 995 [2024-11-24 01:11:37,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:11:37,955 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 0 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:37,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 493 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:11:37,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2024-11-24 01:11:38,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 995. [2024-11-24 01:11:38,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 882 states have (on average 1.2403628117913832) internal successors, (1094), 895 states have internal predecessors, (1094), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:11:38,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1274 transitions. [2024-11-24 01:11:38,048 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1274 transitions. Word has length 162 [2024-11-24 01:11:38,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:38,048 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1274 transitions. [2024-11-24 01:11:38,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:11:38,049 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1274 transitions. [2024-11-24 01:11:38,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:11:38,050 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:38,050 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:38,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:11:38,051 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:38,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:38,051 INFO L85 PathProgramCache]: Analyzing trace with hash -555389885, now seen corresponding path program 1 times [2024-11-24 01:11:38,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:38,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256051036] [2024-11-24 01:11:38,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:38,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:38,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:40,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:40,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256051036] [2024-11-24 01:11:40,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256051036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:40,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:40,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:11:40,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007546940] [2024-11-24 01:11:40,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:40,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:11:40,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:40,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:11:40,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:11:40,368 INFO L87 Difference]: Start difference. First operand 995 states and 1274 transitions. Second operand has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:42,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:42,811 INFO L93 Difference]: Finished difference Result 2307 states and 2942 transitions. [2024-11-24 01:11:42,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 01:11:42,812 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-24 01:11:42,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:42,815 INFO L225 Difference]: With dead ends: 2307 [2024-11-24 01:11:42,815 INFO L226 Difference]: Without dead ends: 1315 [2024-11-24 01:11:42,816 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=652, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:11:42,816 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 164 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 1414 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 1420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:42,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 1954 Invalid, 1420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1414 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:11:42,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315 states. [2024-11-24 01:11:42,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315 to 1043. [2024-11-24 01:11:42,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1043 states, 930 states have (on average 1.2344086021505376) internal successors, (1148), 943 states have internal predecessors, (1148), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:11:42,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 1328 transitions. [2024-11-24 01:11:42,909 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 1328 transitions. Word has length 162 [2024-11-24 01:11:42,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:42,910 INFO L471 AbstractCegarLoop]: Abstraction has 1043 states and 1328 transitions. [2024-11-24 01:11:42,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.0625) internal successors, (65), 18 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:42,910 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 1328 transitions. [2024-11-24 01:11:42,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:11:42,912 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:42,912 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:42,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:11:42,912 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:42,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:42,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1934139077, now seen corresponding path program 1 times [2024-11-24 01:11:42,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:42,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794161800] [2024-11-24 01:11:42,913 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:42,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:48,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:48,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794161800] [2024-11-24 01:11:48,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794161800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:48,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:48,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-24 01:11:48,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82529990] [2024-11-24 01:11:48,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:48,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 01:11:48,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:48,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 01:11:48,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:11:48,497 INFO L87 Difference]: Start difference. First operand 1043 states and 1328 transitions. Second operand has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:50,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:50,691 INFO L93 Difference]: Finished difference Result 2087 states and 2656 transitions. [2024-11-24 01:11:50,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 01:11:50,691 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-24 01:11:50,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:50,694 INFO L225 Difference]: With dead ends: 2087 [2024-11-24 01:11:50,694 INFO L226 Difference]: Without dead ends: 1047 [2024-11-24 01:11:50,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:11:50,699 INFO L435 NwaCegarLoop]: 153 mSDtfsCounter, 51 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 994 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1467 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:50,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1467 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 994 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-24 01:11:50,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1047 states. [2024-11-24 01:11:50,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1047 to 995. [2024-11-24 01:11:50,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 995 states, 882 states have (on average 1.2358276643990929) internal successors, (1090), 895 states have internal predecessors, (1090), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:11:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1270 transitions. [2024-11-24 01:11:50,815 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1270 transitions. Word has length 162 [2024-11-24 01:11:50,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:50,816 INFO L471 AbstractCegarLoop]: Abstraction has 995 states and 1270 transitions. [2024-11-24 01:11:50,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 4.642857142857143) internal successors, (65), 16 states have internal predecessors, (65), 3 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:11:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1270 transitions. [2024-11-24 01:11:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:11:50,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:50,819 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:50,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-24 01:11:50,820 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:50,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:50,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1940567467, now seen corresponding path program 1 times [2024-11-24 01:11:50,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:50,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385563272] [2024-11-24 01:11:50,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:50,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:50,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:11:51,359 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:11:51,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:11:51,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385563272] [2024-11-24 01:11:51,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385563272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:11:51,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:11:51,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:11:51,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897329127] [2024-11-24 01:11:51,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:11:51,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:11:51,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:11:51,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:11:51,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:11:51,362 INFO L87 Difference]: Start difference. First operand 995 states and 1270 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:11:52,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:11:52,311 INFO L93 Difference]: Finished difference Result 2778 states and 3517 transitions. [2024-11-24 01:11:52,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:11:52,314 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-24 01:11:52,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:11:52,324 INFO L225 Difference]: With dead ends: 2778 [2024-11-24 01:11:52,324 INFO L226 Difference]: Without dead ends: 1786 [2024-11-24 01:11:52,326 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:11:52,328 INFO L435 NwaCegarLoop]: 90 mSDtfsCounter, 102 mSDsluCounter, 200 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:11:52,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 290 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:11:52,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2024-11-24 01:11:52,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1266. [2024-11-24 01:11:52,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1153 states have (on average 1.2168256721595836) internal successors, (1403), 1166 states have internal predecessors, (1403), 90 states have call successors, (90), 22 states have call predecessors, (90), 22 states have return successors, (90), 77 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:11:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1583 transitions. [2024-11-24 01:11:52,474 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1583 transitions. Word has length 164 [2024-11-24 01:11:52,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:11:52,474 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1583 transitions. [2024-11-24 01:11:52,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:11:52,475 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1583 transitions. [2024-11-24 01:11:52,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:11:52,477 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:11:52,477 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:11:52,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-24 01:11:52,477 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:11:52,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:11:52,478 INFO L85 PathProgramCache]: Analyzing trace with hash 362288575, now seen corresponding path program 1 times [2024-11-24 01:11:52,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:11:52,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186691295] [2024-11-24 01:11:52,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:11:52,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:11:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:11:52,663 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:11:52,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:11:52,895 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:11:52,896 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:11:52,897 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:11:52,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-24 01:11:52,902 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:11:52,995 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:11:52,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:11:52 BoogieIcfgContainer [2024-11-24 01:11:52,999 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:11:53,000 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:11:53,000 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:11:53,000 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:11:53,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:10:37" (3/4) ... [2024-11-24 01:11:53,004 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:11:53,005 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:11:53,007 INFO L158 Benchmark]: Toolchain (without parser) took 77083.24ms. Allocated memory was 142.6MB in the beginning and 973.1MB in the end (delta: 830.5MB). Free memory was 117.0MB in the beginning and 385.5MB in the end (delta: -268.5MB). Peak memory consumption was 561.9MB. Max. memory is 16.1GB. [2024-11-24 01:11:53,008 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 73.6MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:11:53,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.45ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 100.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:11:53,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.11ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 95.6MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:11:53,010 INFO L158 Benchmark]: Boogie Preprocessor took 86.08ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 92.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:11:53,010 INFO L158 Benchmark]: RCFGBuilder took 1122.90ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 59.2MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-24 01:11:53,013 INFO L158 Benchmark]: TraceAbstraction took 75375.92ms. Allocated memory was 142.6MB in the beginning and 973.1MB in the end (delta: 830.5MB). Free memory was 58.7MB in the beginning and 385.6MB in the end (delta: -326.9MB). Peak memory consumption was 503.2MB. Max. memory is 16.1GB. [2024-11-24 01:11:53,013 INFO L158 Benchmark]: Witness Printer took 5.16ms. Allocated memory is still 973.1MB. Free memory was 385.6MB in the beginning and 385.5MB in the end (delta: 141.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:11:53,014 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 73.8MB in the beginning and 73.6MB in the end (delta: 196.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.45ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 100.1MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.11ms. Allocated memory is still 142.6MB. Free memory was 100.1MB in the beginning and 95.6MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.08ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 92.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1122.90ms. Allocated memory is still 142.6MB. Free memory was 92.5MB in the beginning and 59.2MB in the end (delta: 33.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 75375.92ms. Allocated memory was 142.6MB in the beginning and 973.1MB in the end (delta: 830.5MB). Free memory was 58.7MB in the beginning and 385.6MB in the end (delta: -326.9MB). Peak memory consumption was 503.2MB. Max. memory is 16.1GB. * Witness Printer took 5.16ms. Allocated memory is still 973.1MB. Free memory was 385.6MB in the beginning and 385.5MB in the end (delta: 141.6kB). 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 someBinaryFLOATComparisonOperation at line 113, overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of someBinaryFLOATComparisonOperation at line 120. Possible FailurePath: [L39] unsigned char isInitial = 0; [L40-L56] struct WrapperStruct00 WrapperStruct00 = { 128, 25, 64, 8, 0, 64, 1, 27843, -4, 128, 5, 28020, 128, 10000000000000.926, 1000000.6 }; [L57] unsigned short int last_1_WrapperStruct00_var_1_8 = 64; [L58] signed short int last_1_WrapperStruct00_var_1_11 = -4; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L124] isInitial = 1 [L125] FCALL initially() [L127] CALL updateLastVariables() [L116] EXPR WrapperStruct00.var_1_8 [L116] last_1_WrapperStruct00_var_1_8 = WrapperStruct00.var_1_8 [L117] EXPR WrapperStruct00.var_1_11 [L117] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L127] RET updateLastVariables() [L128] CALL updateVariables() [L84] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L85] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L87] WrapperStruct00.var_1_5 = __VERIFIER_nondet_uchar() [L88] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L88] CALL assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L88] RET assume_abort_if_not(WrapperStruct00.var_1_5 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] CALL assume_abort_if_not(WrapperStruct00.var_1_5 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L89] RET assume_abort_if_not(WrapperStruct00.var_1_5 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L90] WrapperStruct00.var_1_6 = __VERIFIER_nondet_uchar() [L91] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L91] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L91] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L92] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L93] WrapperStruct00.var_1_7 = __VERIFIER_nondet_uchar() [L94] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_7 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_7 <= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_7 <= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L96] WrapperStruct00.var_1_9 = __VERIFIER_nondet_uchar() [L97] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L97] CALL assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L97] RET assume_abort_if_not(WrapperStruct00.var_1_9 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] CALL assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L98] RET assume_abort_if_not(WrapperStruct00.var_1_9 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L99] WrapperStruct00.var_1_10 = __VERIFIER_nondet_ushort() [L100] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L100] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L100] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L101] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L102] WrapperStruct00.var_1_13 = __VERIFIER_nondet_uchar() [L103] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L103] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L103] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 255) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 255) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L105] WrapperStruct00.var_1_14 = __VERIFIER_nondet_uchar() [L106] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L106] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L106] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_14 != 127) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_14 != 127) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L109] WrapperStruct00.var_1_15 = __VERIFIER_nondet_short() [L110] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_15 >= 16383) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_15 >= 16383) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] EXPR WrapperStruct00.var_1_15 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_15 <= 32766) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_15 <= 32766) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L112] WrapperStruct00.var_1_18 = __VERIFIER_nondet_float() [L113] EXPR WrapperStruct00.var_1_18 [L113] EXPR WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F [L113] EXPR WrapperStruct00.var_1_18 [L113] EXPR WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] EXPR (WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] CALL assume_abort_if_not((WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L113] RET assume_abort_if_not((WrapperStruct00.var_1_18 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_18 <= -1.0e-20F) || (WrapperStruct00.var_1_18 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_18 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L128] RET updateVariables() [L129] CALL step() [L62] signed long int stepLocal_0 = last_1_WrapperStruct00_var_1_11; VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64, stepLocal_0=-4] [L63] COND TRUE stepLocal_0 != last_1_WrapperStruct00_var_1_8 [L64] EXPR WrapperStruct00.var_1_4 [L64] EXPR WrapperStruct00.var_1_5 [L64] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) [L64] EXPR WrapperStruct00.var_1_5 [L64] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) [L64] EXPR WrapperStruct00.var_1_7 [L64] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L64] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))) [L68] WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L68] COND TRUE WrapperStruct00.var_1_9 [L69] EXPR WrapperStruct00.var_1_10 [L69] EXPR WrapperStruct00.var_1_6 [L69] WrapperStruct00.var_1_8 = ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)) [L71] EXPR WrapperStruct00.var_1_5 [L71] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L71] COND TRUE ! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10) [L72] WrapperStruct00.var_1_16 = (32 - 8) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L76] EXPR WrapperStruct00.var_1_18 [L76] WrapperStruct00.var_1_17 = WrapperStruct00.var_1_18 [L77] EXPR WrapperStruct00.var_1_1 [L77] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L77] COND FALSE !(WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) [L129] RET step() [L130] CALL, EXPR property() [L120] EXPR (last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4)) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR WrapperStruct00.var_1_4 [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR ((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR WrapperStruct00.var_1_7 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) [L120] EXPR WrapperStruct00.var_1_7 [L120] EXPR ((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1) [L120] EXPR WrapperStruct00.var_1_9 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1 [L120] EXPR WrapperStruct00.var_1_8 [L120] EXPR WrapperStruct00.var_1_10 [L120] EXPR WrapperStruct00.var_1_6 [L120] EXPR WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1) [L120] EXPR WrapperStruct00.var_1_1 [L120] EXPR WrapperStruct00.var_1_16 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)))) [L120] EXPR WrapperStruct00.var_1_5 [L120] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))) [L120] EXPR WrapperStruct00.var_1_16 [L120] EXPR (! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR ((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120] EXPR (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) [L120] EXPR WrapperStruct00.var_1_17 [L120] EXPR WrapperStruct00.var_1_18 [L120] EXPR (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L120-L121] return (((((last_1_WrapperStruct00_var_1_11 != last_1_WrapperStruct00_var_1_8) ? (WrapperStruct00.var_1_1 == ((unsigned char) (WrapperStruct00.var_1_4 + ((((((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) > (WrapperStruct00.var_1_7)) ? (((((WrapperStruct00.var_1_5) < (WrapperStruct00.var_1_6)) ? (WrapperStruct00.var_1_5) : (WrapperStruct00.var_1_6)))) : (WrapperStruct00.var_1_7)))))) : (WrapperStruct00.var_1_1 == ((unsigned char) WrapperStruct00.var_1_4))) && (WrapperStruct00.var_1_9 ? (WrapperStruct00.var_1_8 == ((unsigned short int) ((WrapperStruct00.var_1_10 + 23103) - (32 + WrapperStruct00.var_1_6)))) : 1)) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_16) ? ((((- 8) / (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_14)) >= WrapperStruct00.var_1_6) ? (WrapperStruct00.var_1_11 == ((signed short int) (WrapperStruct00.var_1_16 - (WrapperStruct00.var_1_15 - WrapperStruct00.var_1_14)))) : 1) : 1)) && ((! (WrapperStruct00.var_1_5 > WrapperStruct00.var_1_10)) ? (WrapperStruct00.var_1_16 == ((signed short int) (32 - 8))) : (WrapperStruct00.var_1_16 == ((signed short int) (WrapperStruct00.var_1_13 - WrapperStruct00.var_1_4))))) && (WrapperStruct00.var_1_17 == ((float) WrapperStruct00.var_1_18)) ; [L130] RET, EXPR property() [L130] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=-4, last_1_WrapperStruct00_var_1_8=64] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.2s, OverallIterations: 23, TraceHistogramMax: 20, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 29.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1470 SdHoareTripleChecker+Valid, 25.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1442 mSDsluCounter, 17967 SdHoareTripleChecker+Invalid, 23.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14897 mSDsCounter, 176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12215 IncrementalHoareTripleChecker+Invalid, 12391 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 176 mSolverCounterUnsat, 3070 mSDtfsCounter, 12215 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 808 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=22, InterpolantAutomatonStates: 210, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 22 MinimizatonAttempts, 2729 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 39.6s InterpolantComputationTime, 3976 NumberOfCodeBlocks, 3976 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 3788 ConstructedInterpolants, 0 QuantifiedInterpolants, 11813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1098 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 24 InterpolantComputations, 22 PerfectInterpolantSequences, 18145/18240 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 01:11:53,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, 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_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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_92965b28-808d-4082-8c81-1f669970c356/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 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:11:55,723 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:11:55,882 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:11:55,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:11:55,892 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:11:55,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:11:55,933 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:11:55,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:11:55,934 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:11:55,935 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:11:55,935 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:11:55,936 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:11:55,936 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:11:55,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:11:55,937 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:11:55,938 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:11:55,938 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:11:55,939 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:11:55,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:11:55,939 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:11:55,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:11:55,940 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:11:55,940 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:11:55,940 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:11:55,940 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:11:55,940 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:11:55,941 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:11:55,941 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:11:55,941 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:11:55,941 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:11:55,941 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:11:55,941 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:11:55,942 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:11:55,942 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:11:55,942 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:11:55,942 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:11:55,942 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:11:55,943 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:11:55,943 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:11:55,943 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:11:55,943 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:11:55,943 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_92965b28-808d-4082-8c81-1f669970c356/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 -> 4fa328083b1d4aa3a21868494aa94d1f433f55ced0b8b3227cc831ea530b809d [2024-11-24 01:11:56,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:11:56,322 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:11:56,325 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:11:56,328 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:11:56,328 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:11:56,330 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-11-24 01:11:59,254 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data/7471bb253/56cb7f5fde934e818ffcd697a4db22f4/FLAG9077f2231 [2024-11-24 01:11:59,592 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:11:59,592 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i [2024-11-24 01:11:59,606 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data/7471bb253/56cb7f5fde934e818ffcd697a4db22f4/FLAG9077f2231 [2024-11-24 01:11:59,842 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/data/7471bb253/56cb7f5fde934e818ffcd697a4db22f4 [2024-11-24 01:11:59,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:11:59,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:11:59,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:11:59,851 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:11:59,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:11:59,860 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:11:59" (1/1) ... [2024-11-24 01:11:59,861 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b740890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:11:59, skipping insertion in model container [2024-11-24 01:11:59,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:11:59" (1/1) ... [2024-11-24 01:11:59,887 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:12:00,055 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_92965b28-808d-4082-8c81-1f669970c356/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-11-24 01:12:00,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:12:00,170 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:12:00,182 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_92965b28-808d-4082-8c81-1f669970c356/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-84.i[916,929] [2024-11-24 01:12:00,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:12:00,296 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:12:00,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00 WrapperNode [2024-11-24 01:12:00,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:12:00,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:12:00,299 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:12:00,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:12:00,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,331 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,392 INFO L138 Inliner]: procedures = 34, calls = 154, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 421 [2024-11-24 01:12:00,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:12:00,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:12:00,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:12:00,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:12:00,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,419 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,456 INFO L175 MemorySlicer]: Split 123 memory accesses to 2 slices as follows [2, 121]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 33 writes are split as follows [0, 33]. [2024-11-24 01:12:00,456 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,456 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,495 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,503 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,506 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,508 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:12:00,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:12:00,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:12:00,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:12:00,515 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (1/1) ... [2024-11-24 01:12:00,521 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:12:00,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:12:00,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:12:00,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:12:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:12:00,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 01:12:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 01:12:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:12:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 01:12:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-24 01:12:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-24 01:12:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-24 01:12:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-24 01:12:00,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-24 01:12:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-24 01:12:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-24 01:12:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-24 01:12:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-24 01:12:00,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-24 01:12:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:12:00,590 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:12:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-24 01:12:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-24 01:12:00,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:12:00,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:12:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 01:12:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 01:12:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-24 01:12:00,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-24 01:12:00,785 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:12:00,788 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:12:01,695 INFO L? ?]: Removed 98 outVars from TransFormulas that were not future-live. [2024-11-24 01:12:01,696 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:12:01,711 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:12:01,712 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:12:01,713 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:12:01 BoogieIcfgContainer [2024-11-24 01:12:01,713 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:12:01,715 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:12:01,716 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:12:01,724 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:12:01,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:11:59" (1/3) ... [2024-11-24 01:12:01,726 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4640cd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:12:01, skipping insertion in model container [2024-11-24 01:12:01,726 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:12:00" (2/3) ... [2024-11-24 01:12:01,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4640cd4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:12:01, skipping insertion in model container [2024-11-24 01:12:01,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:12:01" (3/3) ... [2024-11-24 01:12:01,729 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-84.i [2024-11-24 01:12:01,746 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:12:01,748 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-84.i that has 2 procedures, 103 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:12:01,804 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:12:01,820 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;@60666ce8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:12:01,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:12:01,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:12:01,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 01:12:01,858 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:01,859 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:01,860 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:01,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:01,866 INFO L85 PathProgramCache]: Analyzing trace with hash 557809999, now seen corresponding path program 1 times [2024-11-24 01:12:01,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:01,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1197801221] [2024-11-24 01:12:01,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:01,882 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 01:12:01,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:01,884 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:01,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:02,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:02,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:12:02,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:02,469 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 390 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-24 01:12:02,469 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:12:02,470 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:02,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1197801221] [2024-11-24 01:12:02,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1197801221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:02,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:02,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:12:02,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023816255] [2024-11-24 01:12:02,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:02,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:12:02,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:02,505 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:12:02,505 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:12:02,509 INFO L87 Difference]: Start difference. First operand has 103 states, 80 states have (on average 1.35) internal successors, (108), 81 states have internal predecessors, (108), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:12:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:02,555 INFO L93 Difference]: Finished difference Result 199 states and 310 transitions. [2024-11-24 01:12:02,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:12:02,558 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 150 [2024-11-24 01:12:02,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:02,567 INFO L225 Difference]: With dead ends: 199 [2024-11-24 01:12:02,567 INFO L226 Difference]: Without dead ends: 99 [2024-11-24 01:12:02,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 149 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 01:12:02,577 INFO L435 NwaCegarLoop]: 141 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, 141 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 01:12:02,577 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:12:02,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2024-11-24 01:12:02,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2024-11-24 01:12:02,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 77 states have (on average 1.3116883116883118) internal successors, (101), 77 states have internal predecessors, (101), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:12:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2024-11-24 01:12:02,641 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 150 [2024-11-24 01:12:02,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:02,642 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2024-11-24 01:12:02,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:12:02,644 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2024-11-24 01:12:02,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 01:12:02,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:02,649 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:02,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:02,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:02,854 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:02,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:02,856 INFO L85 PathProgramCache]: Analyzing trace with hash 665716147, now seen corresponding path program 1 times [2024-11-24 01:12:02,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:02,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2003566726] [2024-11-24 01:12:02,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:02,858 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 01:12:02,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:02,861 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:02,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:03,254 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:12:03,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:03,367 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:12:03,369 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:12:03,370 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:03,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2003566726] [2024-11-24 01:12:03,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2003566726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:03,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:03,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:12:03,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178023492] [2024-11-24 01:12:03,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:03,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:12:03,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:03,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:12:03,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:12:03,375 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:03,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:03,534 INFO L93 Difference]: Finished difference Result 202 states and 289 transitions. [2024-11-24 01:12:03,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:12:03,535 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-24 01:12:03,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:03,539 INFO L225 Difference]: With dead ends: 202 [2024-11-24 01:12:03,541 INFO L226 Difference]: Without dead ends: 106 [2024-11-24 01:12:03,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:12:03,543 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 1 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:03,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 653 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:12:03,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-24 01:12:03,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-24 01:12:03,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 83 states have (on average 1.2891566265060241) internal successors, (107), 83 states have internal predecessors, (107), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 01:12:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions. [2024-11-24 01:12:03,564 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 150 [2024-11-24 01:12:03,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:03,567 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 147 transitions. [2024-11-24 01:12:03,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:03,568 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions. [2024-11-24 01:12:03,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 01:12:03,571 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:03,571 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:03,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:03,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:03,772 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:03,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:03,773 INFO L85 PathProgramCache]: Analyzing trace with hash 667563189, now seen corresponding path program 1 times [2024-11-24 01:12:03,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:03,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1226422225] [2024-11-24 01:12:03,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:03,774 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 01:12:03,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:03,778 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:03,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:04,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:04,260 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:12:04,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:04,325 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 85 treesize of output 84 [2024-11-24 01:12:04,617 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 129 [2024-11-24 01:12:05,167 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:12:05,168 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:12:05,169 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:05,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1226422225] [2024-11-24 01:12:05,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1226422225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:05,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:05,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:12:05,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609534926] [2024-11-24 01:12:05,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:05,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:12:05,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:05,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:12:05,173 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:12:05,174 INFO L87 Difference]: Start difference. First operand 105 states and 147 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:07,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:07,234 INFO L93 Difference]: Finished difference Result 314 states and 439 transitions. [2024-11-24 01:12:07,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:12:07,235 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 150 [2024-11-24 01:12:07,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:07,239 INFO L225 Difference]: With dead ends: 314 [2024-11-24 01:12:07,241 INFO L226 Difference]: Without dead ends: 212 [2024-11-24 01:12:07,242 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:12:07,243 INFO L435 NwaCegarLoop]: 134 mSDtfsCounter, 75 mSDsluCounter, 343 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:07,244 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 477 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-24 01:12:07,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2024-11-24 01:12:07,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 177. [2024-11-24 01:12:07,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 133 states have (on average 1.255639097744361) internal successors, (167), 133 states have internal predecessors, (167), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:12:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 247 transitions. [2024-11-24 01:12:07,303 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 247 transitions. Word has length 150 [2024-11-24 01:12:07,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:07,307 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 247 transitions. [2024-11-24 01:12:07,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:07,307 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 247 transitions. [2024-11-24 01:12:07,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 01:12:07,313 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:07,314 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:07,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:07,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:07,515 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:07,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:07,515 INFO L85 PathProgramCache]: Analyzing trace with hash -329940525, now seen corresponding path program 1 times [2024-11-24 01:12:07,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:07,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [865995686] [2024-11-24 01:12:07,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:07,516 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 01:12:07,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:07,521 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:07,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:07,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 01:12:07,963 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:07,978 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:12:08,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 01:12:08,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:08,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-24 01:12:08,537 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:08,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-24 01:12:08,894 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:08,894 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-11-24 01:12:09,341 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:09,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-11-24 01:12:09,864 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:09,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-24 01:12:10,269 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:10,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 75 treesize of output 89 [2024-11-24 01:12:11,083 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:11,083 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 85 treesize of output 102 [2024-11-24 01:12:11,796 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:11,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 100 treesize of output 105 [2024-11-24 01:12:12,817 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:12,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 112 treesize of output 120 [2024-11-24 01:12:13,153 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:13,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 140 treesize of output 145 [2024-11-24 01:12:13,570 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:13,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 150 [2024-11-24 01:12:13,920 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:13,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 145 treesize of output 150 [2024-11-24 01:12:14,917 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:14,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 155 treesize of output 75 [2024-11-24 01:12:15,190 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 692 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-24 01:12:15,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:12:15,191 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:15,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [865995686] [2024-11-24 01:12:15,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [865995686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:15,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:15,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-24 01:12:15,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861602598] [2024-11-24 01:12:15,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:15,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:12:15,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:15,193 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:12:15,193 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:12:15,194 INFO L87 Difference]: Start difference. First operand 177 states and 247 transitions. Second operand has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-24 01:12:20,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:20,794 INFO L93 Difference]: Finished difference Result 388 states and 539 transitions. [2024-11-24 01:12:20,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:12:20,795 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) Word has length 158 [2024-11-24 01:12:20,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:20,797 INFO L225 Difference]: With dead ends: 388 [2024-11-24 01:12:20,798 INFO L226 Difference]: Without dead ends: 286 [2024-11-24 01:12:20,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 139 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=145, Invalid=275, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:12:20,799 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 404 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 722 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:20,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 521 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 722 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-24 01:12:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2024-11-24 01:12:20,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 203. [2024-11-24 01:12:20,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 159 states have internal predecessors, (204), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:12:20,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 284 transitions. [2024-11-24 01:12:20,862 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 284 transitions. Word has length 158 [2024-11-24 01:12:20,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:20,863 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 284 transitions. [2024-11-24 01:12:20,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.555555555555555) internal successors, (82), 18 states have internal predecessors, (82), 8 states have call successors, (20), 8 states have call predecessors, (20), 8 states have return successors, (20), 8 states have call predecessors, (20), 8 states have call successors, (20) [2024-11-24 01:12:20,863 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2024-11-24 01:12:20,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-24 01:12:20,865 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:20,866 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:20,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:21,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:21,066 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:21,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:21,067 INFO L85 PathProgramCache]: Analyzing trace with hash -2135378859, now seen corresponding path program 1 times [2024-11-24 01:12:21,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:21,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975163659] [2024-11-24 01:12:21,068 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:21,068 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 01:12:21,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:21,072 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:21,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:21,531 INFO L256 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-24 01:12:21,540 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:21,549 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:12:21,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:12:21,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 01:12:21,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:21,820 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:12:21,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:21,948 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-24 01:12:22,182 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:22,182 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-24 01:12:22,497 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:22,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-11-24 01:12:22,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:22,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-24 01:12:23,325 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:23,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-11-24 01:12:23,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:23,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-24 01:12:24,443 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:24,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 92 treesize of output 112 [2024-11-24 01:12:24,729 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:24,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 107 treesize of output 115 [2024-11-24 01:12:24,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:24,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 107 treesize of output 115 [2024-11-24 01:12:25,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:25,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 117 treesize of output 49 [2024-11-24 01:12:25,385 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 668 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-24 01:12:25,385 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:12:25,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:25,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975163659] [2024-11-24 01:12:25,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975163659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:25,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:25,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-24 01:12:25,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982920295] [2024-11-24 01:12:25,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:25,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 01:12:25,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:25,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 01:12:25,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:12:25,387 INFO L87 Difference]: Start difference. First operand 203 states and 284 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 01:12:28,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:28,943 INFO L93 Difference]: Finished difference Result 374 states and 523 transitions. [2024-11-24 01:12:28,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 01:12:28,944 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) Word has length 158 [2024-11-24 01:12:28,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:28,946 INFO L225 Difference]: With dead ends: 374 [2024-11-24 01:12:28,946 INFO L226 Difference]: Without dead ends: 256 [2024-11-24 01:12:28,947 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:12:28,948 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 353 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 716 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:28,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 504 Invalid, 716 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-24 01:12:28,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-24 01:12:28,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 203. [2024-11-24 01:12:28,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 159 states have (on average 1.2830188679245282) internal successors, (204), 159 states have internal predecessors, (204), 40 states have call successors, (40), 3 states have call predecessors, (40), 3 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2024-11-24 01:12:28,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 284 transitions. [2024-11-24 01:12:28,990 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 284 transitions. Word has length 158 [2024-11-24 01:12:28,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:28,991 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 284 transitions. [2024-11-24 01:12:28,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 7 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 7 states have call predecessors, (20), 7 states have call successors, (20) [2024-11-24 01:12:28,991 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2024-11-24 01:12:28,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:12:28,993 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:28,994 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:29,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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)] Ended with exit code 0 [2024-11-24 01:12:29,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:29,194 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:29,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:29,195 INFO L85 PathProgramCache]: Analyzing trace with hash 634758488, now seen corresponding path program 1 times [2024-11-24 01:12:29,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:29,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2069876463] [2024-11-24 01:12:29,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:29,195 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 01:12:29,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:29,197 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:29,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-24 01:12:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:29,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-24 01:12:29,569 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:29,573 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 01:12:29,621 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:12:29,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:12:29,831 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:29,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-11-24 01:12:30,042 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:30,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-11-24 01:12:30,199 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:30,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-11-24 01:12:30,365 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:30,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-24 01:12:30,833 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:30,834 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-11-24 01:12:31,103 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:31,103 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-11-24 01:12:31,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:31,787 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-24 01:12:31,931 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:31,931 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 111 [2024-11-24 01:12:32,132 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:32,132 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 115 treesize of output 114 [2024-11-24 01:12:32,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:32,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 115 treesize of output 114 [2024-11-24 01:12:32,513 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:32,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 117 treesize of output 53 [2024-11-24 01:12:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 529 proven. 81 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-24 01:12:32,629 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:12:33,074 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:12:33,074 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:33,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2069876463] [2024-11-24 01:12:33,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2069876463] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:12:33,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:12:33,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-11-24 01:12:33,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916833208] [2024-11-24 01:12:33,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:33,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:12:33,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:33,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:12:33,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:12:33,076 INFO L87 Difference]: Start difference. First operand 203 states and 284 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:34,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:34,190 INFO L93 Difference]: Finished difference Result 395 states and 551 transitions. [2024-11-24 01:12:34,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:12:34,191 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:12:34,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:34,192 INFO L225 Difference]: With dead ends: 395 [2024-11-24 01:12:34,193 INFO L226 Difference]: Without dead ends: 277 [2024-11-24 01:12:34,193 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=133, Invalid=569, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:12:34,194 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 165 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:34,194 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 521 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:12:34,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-24 01:12:34,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 274. [2024-11-24 01:12:34,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 227 states have (on average 1.3083700440528634) internal successors, (297), 228 states have internal predecessors, (297), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 01:12:34,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 381 transitions. [2024-11-24 01:12:34,251 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 381 transitions. Word has length 160 [2024-11-24 01:12:34,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:34,252 INFO L471 AbstractCegarLoop]: Abstraction has 274 states and 381 transitions. [2024-11-24 01:12:34,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:34,252 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 381 transitions. [2024-11-24 01:12:34,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:12:34,254 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:34,255 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:34,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2024-11-24 01:12:34,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:34,455 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:34,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:34,456 INFO L85 PathProgramCache]: Analyzing trace with hash -386309866, now seen corresponding path program 1 times [2024-11-24 01:12:34,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:34,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [812619263] [2024-11-24 01:12:34,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:34,456 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 01:12:34,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:34,458 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:34,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:34,825 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 55 conjuncts are in the unsatisfiable core [2024-11-24 01:12:34,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:34,839 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:12:34,994 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-24 01:12:35,456 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:35,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-11-24 01:12:36,186 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:36,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 72 treesize of output 50 [2024-11-24 01:12:36,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:36,634 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 60 [2024-11-24 01:12:37,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:37,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-11-24 01:12:37,757 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:37,757 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-24 01:12:38,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:38,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-11-24 01:12:39,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:39,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-24 01:12:40,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:40,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 115 treesize of output 105 [2024-11-24 01:12:41,085 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:41,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 143 treesize of output 130 [2024-11-24 01:12:41,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:41,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 133 [2024-11-24 01:12:41,924 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:41,925 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 158 treesize of output 133 [2024-11-24 01:12:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 576 proven. 117 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-11-24 01:12:42,715 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:12:43,597 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:12:43,598 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:43,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [812619263] [2024-11-24 01:12:43,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [812619263] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:12:43,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:12:43,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [27] total 34 [2024-11-24 01:12:43,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934510795] [2024-11-24 01:12:43,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:43,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 01:12:43,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:43,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 01:12:43,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=886, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:12:43,600 INFO L87 Difference]: Start difference. First operand 274 states and 381 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:45,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:45,437 INFO L93 Difference]: Finished difference Result 558 states and 770 transitions. [2024-11-24 01:12:45,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:12:45,438 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:12:45,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:45,441 INFO L225 Difference]: With dead ends: 558 [2024-11-24 01:12:45,442 INFO L226 Difference]: Without dead ends: 383 [2024-11-24 01:12:45,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 284 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 426 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=312, Invalid=1248, Unknown=0, NotChecked=0, Total=1560 [2024-11-24 01:12:45,443 INFO L435 NwaCegarLoop]: 170 mSDtfsCounter, 262 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:45,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 746 Invalid, 577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:12:45,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-24 01:12:45,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 284. [2024-11-24 01:12:45,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 237 states have (on average 1.3206751054852321) internal successors, (313), 238 states have internal predecessors, (313), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 01:12:45,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 397 transitions. [2024-11-24 01:12:45,501 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 397 transitions. Word has length 160 [2024-11-24 01:12:45,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:45,502 INFO L471 AbstractCegarLoop]: Abstraction has 284 states and 397 transitions. [2024-11-24 01:12:45,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 397 transitions. [2024-11-24 01:12:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:12:45,504 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:45,504 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:45,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:45,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:45,705 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:45,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash -383894516, now seen corresponding path program 1 times [2024-11-24 01:12:45,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:45,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1332198745] [2024-11-24 01:12:45,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:45,706 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 01:12:45,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:45,708 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:45,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:45,965 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:12:45,967 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:45,995 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:12:45,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:12:45,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:45,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1332198745] [2024-11-24 01:12:45,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1332198745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:12:45,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:12:45,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:12:45,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841640592] [2024-11-24 01:12:45,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:45,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:12:45,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:45,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:12:45,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:12:45,997 INFO L87 Difference]: Start difference. First operand 284 states and 397 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:46,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:46,102 INFO L93 Difference]: Finished difference Result 475 states and 665 transitions. [2024-11-24 01:12:46,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:12:46,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:12:46,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:46,105 INFO L225 Difference]: With dead ends: 475 [2024-11-24 01:12:46,105 INFO L226 Difference]: Without dead ends: 290 [2024-11-24 01:12:46,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 156 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 01:12:46,106 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:46,107 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:12:46,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-24 01:12:46,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2024-11-24 01:12:46,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 243 states have (on average 1.3127572016460904) internal successors, (319), 244 states have internal predecessors, (319), 42 states have call successors, (42), 4 states have call predecessors, (42), 4 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-24 01:12:46,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 403 transitions. [2024-11-24 01:12:46,165 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 403 transitions. Word has length 160 [2024-11-24 01:12:46,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:46,166 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 403 transitions. [2024-11-24 01:12:46,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:46,167 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 403 transitions. [2024-11-24 01:12:46,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:12:46,168 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:46,168 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:46,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:46,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:46,369 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:46,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:46,369 INFO L85 PathProgramCache]: Analyzing trace with hash -642059954, now seen corresponding path program 1 times [2024-11-24 01:12:46,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:46,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636244659] [2024-11-24 01:12:46,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:46,370 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 01:12:46,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:46,371 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:46,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:46,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-24 01:12:46,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:46,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:12:46,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-24 01:12:47,080 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-24 01:12:47,169 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 36 treesize of output 29 [2024-11-24 01:12:47,914 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:47,914 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 57 treesize of output 47 [2024-11-24 01:12:48,413 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:48,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 67 treesize of output 60 [2024-11-24 01:12:49,012 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:49,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 63 [2024-11-24 01:12:49,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:49,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 82 treesize of output 63 [2024-11-24 01:12:50,220 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:50,221 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 81 [2024-11-24 01:12:50,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:50,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 90 treesize of output 89 [2024-11-24 01:12:50,763 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:50,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 100 treesize of output 93 [2024-11-24 01:12:50,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:50,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 100 treesize of output 93 [2024-11-24 01:12:51,802 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:51,802 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 161 treesize of output 85 [2024-11-24 01:12:52,007 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 563 proven. 84 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-24 01:12:52,007 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:12:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:12:52,944 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:52,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636244659] [2024-11-24 01:12:52,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636244659] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:12:52,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:12:52,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [26] total 30 [2024-11-24 01:12:52,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722674603] [2024-11-24 01:12:52,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:52,944 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:12:52,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:52,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:12:52,945 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=712, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:12:52,945 INFO L87 Difference]: Start difference. First operand 290 states and 403 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:54,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:54,485 INFO L93 Difference]: Finished difference Result 634 states and 877 transitions. [2024-11-24 01:12:54,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 01:12:54,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:12:54,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:54,488 INFO L225 Difference]: With dead ends: 634 [2024-11-24 01:12:54,488 INFO L226 Difference]: Without dead ends: 443 [2024-11-24 01:12:54,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=176, Invalid=880, Unknown=0, NotChecked=0, Total=1056 [2024-11-24 01:12:54,490 INFO L435 NwaCegarLoop]: 126 mSDtfsCounter, 145 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:54,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 642 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-24 01:12:54,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-24 01:12:54,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 434. [2024-11-24 01:12:54,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 379 states have (on average 1.3324538258575198) internal successors, (505), 382 states have internal predecessors, (505), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 01:12:54,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 601 transitions. [2024-11-24 01:12:54,560 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 601 transitions. Word has length 160 [2024-11-24 01:12:54,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:54,561 INFO L471 AbstractCegarLoop]: Abstraction has 434 states and 601 transitions. [2024-11-24 01:12:54,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:54,561 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 601 transitions. [2024-11-24 01:12:54,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:12:54,562 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:54,562 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:54,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:54,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:54,763 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:12:54,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:12:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash -2082808520, now seen corresponding path program 1 times [2024-11-24 01:12:54,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:12:54,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [779108194] [2024-11-24 01:12:54,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:12:54,764 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:12:54,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:12:54,766 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:12:54,767 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2024-11-24 01:12:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:12:55,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-24 01:12:55,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:12:55,159 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:12:55,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:12:55,262 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-24 01:12:55,552 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:55,552 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-24 01:12:55,701 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:55,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-24 01:12:56,028 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:56,028 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:12:56,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:56,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:12:56,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:56,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:12:56,964 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:56,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:12:57,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:57,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 61 [2024-11-24 01:12:57,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:57,806 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 85 treesize of output 90 [2024-11-24 01:12:58,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:58,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 95 treesize of output 94 [2024-11-24 01:12:58,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:58,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 95 treesize of output 94 [2024-11-24 01:12:58,374 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:12:58,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 97 treesize of output 51 [2024-11-24 01:12:58,461 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 475 proven. 81 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-11-24 01:12:58,461 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:12:58,903 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:12:58,903 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:12:58,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [779108194] [2024-11-24 01:12:58,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [779108194] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:12:58,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:12:58,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [19] total 24 [2024-11-24 01:12:58,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959907276] [2024-11-24 01:12:58,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:12:58,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:12:58,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:12:58,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:12:58,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2024-11-24 01:12:58,905 INFO L87 Difference]: Start difference. First operand 434 states and 601 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:59,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:12:59,825 INFO L93 Difference]: Finished difference Result 881 states and 1210 transitions. [2024-11-24 01:12:59,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:12:59,825 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:12:59,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:12:59,829 INFO L225 Difference]: With dead ends: 881 [2024-11-24 01:12:59,829 INFO L226 Difference]: Without dead ends: 567 [2024-11-24 01:12:59,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 295 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=136, Invalid=566, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:12:59,830 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 156 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:12:59,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 471 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:12:59,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2024-11-24 01:12:59,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 484. [2024-11-24 01:12:59,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 429 states have (on average 1.3403263403263403) internal successors, (575), 432 states have internal predecessors, (575), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 01:12:59,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 671 transitions. [2024-11-24 01:12:59,892 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 671 transitions. Word has length 160 [2024-11-24 01:12:59,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:12:59,893 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 671 transitions. [2024-11-24 01:12:59,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:12:59,893 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 671 transitions. [2024-11-24 01:12:59,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:12:59,895 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:12:59,895 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:12:59,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-24 01:13:00,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:00,095 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:00,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:00,096 INFO L85 PathProgramCache]: Analyzing trace with hash 218014070, now seen corresponding path program 1 times [2024-11-24 01:13:00,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:00,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930440846] [2024-11-24 01:13:00,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:00,097 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 01:13:00,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:00,098 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:00,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:00,371 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:13:00,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:00,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:00,424 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 41 treesize of output 17 [2024-11-24 01:13:00,460 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:00,460 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:00,460 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930440846] [2024-11-24 01:13:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930440846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:00,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:00,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:13:00,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615164274] [2024-11-24 01:13:00,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:00,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:00,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:00,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:00,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:13:00,462 INFO L87 Difference]: Start difference. First operand 484 states and 671 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:01,172 INFO L93 Difference]: Finished difference Result 1017 states and 1382 transitions. [2024-11-24 01:13:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:01,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:13:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:01,176 INFO L225 Difference]: With dead ends: 1017 [2024-11-24 01:13:01,176 INFO L226 Difference]: Without dead ends: 670 [2024-11-24 01:13:01,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 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 01:13:01,178 INFO L435 NwaCegarLoop]: 143 mSDtfsCounter, 46 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:01,178 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 443 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:13:01,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-24 01:13:01,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 494. [2024-11-24 01:13:01,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 439 states have (on average 1.3371298405466971) internal successors, (587), 442 states have internal predecessors, (587), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 01:13:01,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 683 transitions. [2024-11-24 01:13:01,262 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 683 transitions. Word has length 160 [2024-11-24 01:13:01,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:01,263 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 683 transitions. [2024-11-24 01:13:01,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:01,263 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 683 transitions. [2024-11-24 01:13:01,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:13:01,265 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:01,265 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:01,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:01,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:01,466 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:01,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:01,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1061849608, now seen corresponding path program 1 times [2024-11-24 01:13:01,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:01,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796112096] [2024-11-24 01:13:01,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:01,467 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 01:13:01,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:01,469 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:01,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:01,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:01,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 01:13:01,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:01,925 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 01:13:01,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:13:02,157 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:02,158 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-11-24 01:13:02,352 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:02,352 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 42 [2024-11-24 01:13:02,544 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:02,545 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-24 01:13:02,874 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:02,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 65 [2024-11-24 01:13:03,202 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:03,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 72 treesize of output 68 [2024-11-24 01:13:03,583 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:03,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 67 treesize of output 78 [2024-11-24 01:13:03,977 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:03,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 81 [2024-11-24 01:13:04,615 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:04,616 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 87 treesize of output 95 [2024-11-24 01:13:04,820 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:04,821 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 120 treesize of output 119 [2024-11-24 01:13:05,074 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:05,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 123 [2024-11-24 01:13:05,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:05,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 123 [2024-11-24 01:13:05,304 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:05,304 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 131 treesize of output 61 [2024-11-24 01:13:05,410 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 577 proven. 87 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-24 01:13:05,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:13:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:05,734 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:05,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796112096] [2024-11-24 01:13:05,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796112096] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:05,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:05,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2024-11-24 01:13:05,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516449551] [2024-11-24 01:13:05,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:05,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:05,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:05,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:05,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=365, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:13:05,736 INFO L87 Difference]: Start difference. First operand 494 states and 683 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:06,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:06,391 INFO L93 Difference]: Finished difference Result 940 states and 1284 transitions. [2024-11-24 01:13:06,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:06,392 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:13:06,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:06,395 INFO L225 Difference]: With dead ends: 940 [2024-11-24 01:13:06,395 INFO L226 Difference]: Without dead ends: 583 [2024-11-24 01:13:06,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=102, Invalid=404, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:13:06,396 INFO L435 NwaCegarLoop]: 121 mSDtfsCounter, 108 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:06,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 316 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:13:06,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2024-11-24 01:13:06,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 494. [2024-11-24 01:13:06,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 439 states have (on average 1.328018223234624) internal successors, (583), 442 states have internal predecessors, (583), 48 states have call successors, (48), 6 states have call predecessors, (48), 6 states have return successors, (48), 45 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-24 01:13:06,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 679 transitions. [2024-11-24 01:13:06,472 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 679 transitions. Word has length 160 [2024-11-24 01:13:06,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:06,472 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 679 transitions. [2024-11-24 01:13:06,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:06,472 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 679 transitions. [2024-11-24 01:13:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:13:06,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:06,474 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:06,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:06,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:06,675 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:06,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:06,676 INFO L85 PathProgramCache]: Analyzing trace with hash -501511344, now seen corresponding path program 1 times [2024-11-24 01:13:06,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:06,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696137733] [2024-11-24 01:13:06,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:06,676 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 01:13:06,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:06,678 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:06,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2024-11-24 01:13:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:07,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-24 01:13:07,071 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:07,076 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:13:07,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:13:07,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:13:07,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-24 01:13:07,358 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:07,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-24 01:13:07,559 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:07,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-11-24 01:13:07,738 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:07,738 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 53 [2024-11-24 01:13:08,015 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:08,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-11-24 01:13:08,065 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:08,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-11-24 01:13:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 529 proven. 30 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-24 01:13:08,256 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:13:08,507 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:08,507 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:08,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696137733] [2024-11-24 01:13:08,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696137733] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:08,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:08,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 14 [2024-11-24 01:13:08,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980328663] [2024-11-24 01:13:08,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:08,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:08,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:08,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:08,509 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:13:08,509 INFO L87 Difference]: Start difference. First operand 494 states and 679 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:09,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:09,077 INFO L93 Difference]: Finished difference Result 860 states and 1176 transitions. [2024-11-24 01:13:09,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:09,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:13:09,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:09,081 INFO L225 Difference]: With dead ends: 860 [2024-11-24 01:13:09,081 INFO L226 Difference]: Without dead ends: 503 [2024-11-24 01:13:09,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-24 01:13:09,084 INFO L435 NwaCegarLoop]: 183 mSDtfsCounter, 104 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:09,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 434 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:13:09,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2024-11-24 01:13:09,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 500. [2024-11-24 01:13:09,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 440 states have (on average 1.3181818181818181) internal successors, (580), 443 states have internal predecessors, (580), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-24 01:13:09,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 684 transitions. [2024-11-24 01:13:09,169 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 684 transitions. Word has length 160 [2024-11-24 01:13:09,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:09,169 INFO L471 AbstractCegarLoop]: Abstraction has 500 states and 684 transitions. [2024-11-24 01:13:09,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:09,170 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 684 transitions. [2024-11-24 01:13:09,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:13:09,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:09,171 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:09,179 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2024-11-24 01:13:09,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:09,372 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:09,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:09,373 INFO L85 PathProgramCache]: Analyzing trace with hash 657390742, now seen corresponding path program 1 times [2024-11-24 01:13:09,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:09,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133376445] [2024-11-24 01:13:09,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:09,373 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 01:13:09,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:09,377 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:09,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:09,719 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:13:09,722 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:09,773 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:09,773 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 41 treesize of output 17 [2024-11-24 01:13:09,814 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:09,814 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:09,814 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:09,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133376445] [2024-11-24 01:13:09,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133376445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:09,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:09,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:13:09,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066464788] [2024-11-24 01:13:09,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:09,815 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:09,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:09,815 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:09,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:13:09,815 INFO L87 Difference]: Start difference. First operand 500 states and 684 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:10,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:10,908 INFO L93 Difference]: Finished difference Result 1045 states and 1403 transitions. [2024-11-24 01:13:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:10,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:13:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:10,911 INFO L225 Difference]: With dead ends: 1045 [2024-11-24 01:13:10,912 INFO L226 Difference]: Without dead ends: 664 [2024-11-24 01:13:10,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 156 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 01:13:10,913 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 63 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:10,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 451 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:13:10,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-11-24 01:13:10,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 494. [2024-11-24 01:13:10,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 434 states have (on average 1.3179723502304148) internal successors, (572), 437 states have internal predecessors, (572), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-24 01:13:11,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 676 transitions. [2024-11-24 01:13:11,001 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 676 transitions. Word has length 160 [2024-11-24 01:13:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:11,001 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 676 transitions. [2024-11-24 01:13:11,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 676 transitions. [2024-11-24 01:13:11,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:13:11,003 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:11,003 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:11,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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)] Forceful destruction successful, exit code 0 [2024-11-24 01:13:11,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:11,204 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:11,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1714348520, now seen corresponding path program 1 times [2024-11-24 01:13:11,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:11,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [982071915] [2024-11-24 01:13:11,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:11,205 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 01:13:11,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:11,207 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:11,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:11,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:11,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 01:13:11,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:11,768 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 01:13:11,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-24 01:13:12,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:12,156 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-24 01:13:12,418 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:12,418 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:13:12,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:12,687 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:13:12,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:12,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:13:13,204 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:13,204 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:13:13,502 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:13,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-11-24 01:13:13,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:13,854 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-11-24 01:13:14,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:14,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 74 [2024-11-24 01:13:14,563 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:14,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 111 treesize of output 107 [2024-11-24 01:13:14,788 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:14,788 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 126 treesize of output 110 [2024-11-24 01:13:14,986 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:14,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 126 treesize of output 110 [2024-11-24 01:13:15,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:15,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 57 [2024-11-24 01:13:15,199 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 425 proven. 87 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-24 01:13:15,199 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:13:15,531 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:15,531 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:15,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [982071915] [2024-11-24 01:13:15,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [982071915] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:15,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:15,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [18] total 21 [2024-11-24 01:13:15,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168713143] [2024-11-24 01:13:15,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:15,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:15,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:15,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:15,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=331, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:13:15,533 INFO L87 Difference]: Start difference. First operand 494 states and 676 transitions. Second operand has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:16,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:16,158 INFO L93 Difference]: Finished difference Result 929 states and 1252 transitions. [2024-11-24 01:13:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:16,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:13:16,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:16,163 INFO L225 Difference]: With dead ends: 929 [2024-11-24 01:13:16,163 INFO L226 Difference]: Without dead ends: 572 [2024-11-24 01:13:16,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 295 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2024-11-24 01:13:16,166 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 54 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:16,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 442 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:13:16,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2024-11-24 01:13:16,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 486. [2024-11-24 01:13:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 426 states have (on average 1.3051643192488263) internal successors, (556), 429 states have internal predecessors, (556), 52 states have call successors, (52), 7 states have call predecessors, (52), 7 states have return successors, (52), 49 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-24 01:13:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 660 transitions. [2024-11-24 01:13:16,242 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 660 transitions. Word has length 160 [2024-11-24 01:13:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:16,243 INFO L471 AbstractCegarLoop]: Abstraction has 486 states and 660 transitions. [2024-11-24 01:13:16,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.6) internal successors, (63), 5 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 660 transitions. [2024-11-24 01:13:16,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-24 01:13:16,244 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:16,244 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:16,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:16,445 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:16,445 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:16,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:16,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1039217354, now seen corresponding path program 1 times [2024-11-24 01:13:16,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:16,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175576543] [2024-11-24 01:13:16,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:16,446 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 01:13:16,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:16,450 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:16,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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)] Waiting until timeout for monitored process [2024-11-24 01:13:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:16,869 INFO L256 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-24 01:13:16,876 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:16,880 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 01:13:16,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-24 01:13:17,324 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:17,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-24 01:13:17,525 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:17,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-24 01:13:17,797 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:17,797 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 41 [2024-11-24 01:13:18,008 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:18,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 51 [2024-11-24 01:13:18,480 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:18,481 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-11-24 01:13:18,709 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:18,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 61 treesize of output 54 [2024-11-24 01:13:19,278 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:19,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-24 01:13:19,452 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:19,452 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 100 treesize of output 93 [2024-11-24 01:13:19,675 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:19,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 98 [2024-11-24 01:13:19,720 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:19,720 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 98 [2024-11-24 01:13:20,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:20,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 55 [2024-11-24 01:13:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 551 proven. 75 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-24 01:13:20,205 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:13:20,668 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:20,669 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:20,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175576543] [2024-11-24 01:13:20,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175576543] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:13:20,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:13:20,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [20] total 25 [2024-11-24 01:13:20,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086566406] [2024-11-24 01:13:20,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:20,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:13:20,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:20,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:13:20,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=479, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:13:20,670 INFO L87 Difference]: Start difference. First operand 486 states and 660 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:21,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:21,912 INFO L93 Difference]: Finished difference Result 931 states and 1244 transitions. [2024-11-24 01:13:21,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:13:21,913 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 160 [2024-11-24 01:13:21,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:21,915 INFO L225 Difference]: With dead ends: 931 [2024-11-24 01:13:21,916 INFO L226 Difference]: Without dead ends: 582 [2024-11-24 01:13:21,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 294 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=148, Invalid=608, Unknown=0, NotChecked=0, Total=756 [2024-11-24 01:13:21,917 INFO L435 NwaCegarLoop]: 177 mSDtfsCounter, 142 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:21,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 603 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-24 01:13:21,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2024-11-24 01:13:22,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2024-11-24 01:13:22,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 506 states have (on average 1.2826086956521738) internal successors, (649), 511 states have internal predecessors, (649), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:13:22,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 769 transitions. [2024-11-24 01:13:22,007 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 769 transitions. Word has length 160 [2024-11-24 01:13:22,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:22,008 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 769 transitions. [2024-11-24 01:13:22,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:22,008 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 769 transitions. [2024-11-24 01:13:22,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:13:22,011 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:22,011 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:22,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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)] Ended with exit code 0 [2024-11-24 01:13:22,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:22,213 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:22,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:22,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1574974333, now seen corresponding path program 1 times [2024-11-24 01:13:22,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:22,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [241369690] [2024-11-24 01:13:22,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:22,214 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 01:13:22,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:22,216 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:22,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:22,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:22,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-24 01:13:22,652 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:22,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:13:22,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:13:22,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:13:22,730 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 01:13:22,781 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 01:13:22,832 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 01:13:22,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 01:13:22,937 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 01:13:23,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 01:13:23,134 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:23,135 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:23,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:23,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 52 treesize of output 60 [2024-11-24 01:13:23,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:23,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 93 [2024-11-24 01:13:23,640 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:23,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 96 [2024-11-24 01:13:23,674 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:23,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 100 treesize of output 96 [2024-11-24 01:13:24,004 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:24,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 110 treesize of output 48 [2024-11-24 01:13:24,193 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-11-24 01:13:24,193 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:24,193 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:24,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [241369690] [2024-11-24 01:13:24,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [241369690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:24,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:24,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-24 01:13:24,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540701016] [2024-11-24 01:13:24,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:24,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:13:24,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:24,194 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:13:24,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:13:24,195 INFO L87 Difference]: Start difference. First operand 578 states and 769 transitions. Second operand has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:13:29,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:29,786 INFO L93 Difference]: Finished difference Result 1131 states and 1492 transitions. [2024-11-24 01:13:29,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:13:29,787 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-24 01:13:29,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:29,789 INFO L225 Difference]: With dead ends: 1131 [2024-11-24 01:13:29,789 INFO L226 Difference]: Without dead ends: 690 [2024-11-24 01:13:29,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:13:29,791 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 260 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 1112 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 682 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:29,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 682 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1112 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-24 01:13:29,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-24 01:13:29,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 605. [2024-11-24 01:13:29,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 533 states have (on average 1.2870544090056286) internal successors, (686), 538 states have internal predecessors, (686), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:13:29,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 806 transitions. [2024-11-24 01:13:29,900 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 806 transitions. Word has length 162 [2024-11-24 01:13:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:29,901 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 806 transitions. [2024-11-24 01:13:29,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.071428571428571) internal successors, (71), 14 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:13:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 806 transitions. [2024-11-24 01:13:29,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:13:29,903 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:29,903 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:29,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:30,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:30,104 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:30,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:30,104 INFO L85 PathProgramCache]: Analyzing trace with hash 295110655, now seen corresponding path program 1 times [2024-11-24 01:13:30,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:30,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2017874944] [2024-11-24 01:13:30,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:30,105 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 01:13:30,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:30,107 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:30,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (19)] Waiting until timeout for monitored process [2024-11-24 01:13:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:30,452 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:13:30,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:30,524 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:30,524 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 40 treesize of output 16 [2024-11-24 01:13:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:30,567 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:30,567 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:30,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2017874944] [2024-11-24 01:13:30,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2017874944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:30,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:30,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:13:30,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611636210] [2024-11-24 01:13:30,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:30,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:30,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:30,571 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:30,571 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:13:30,572 INFO L87 Difference]: Start difference. First operand 605 states and 806 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:31,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:31,270 INFO L93 Difference]: Finished difference Result 1210 states and 1588 transitions. [2024-11-24 01:13:31,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:31,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-24 01:13:31,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:31,274 INFO L225 Difference]: With dead ends: 1210 [2024-11-24 01:13:31,274 INFO L226 Difference]: Without dead ends: 753 [2024-11-24 01:13:31,275 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 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 01:13:31,276 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 44 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:31,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 422 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-24 01:13:31,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2024-11-24 01:13:31,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 599. [2024-11-24 01:13:31,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 527 states have (on average 1.2808349146110056) internal successors, (675), 532 states have internal predecessors, (675), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:13:31,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 795 transitions. [2024-11-24 01:13:31,382 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 795 transitions. Word has length 162 [2024-11-24 01:13:31,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:31,383 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 795 transitions. [2024-11-24 01:13:31,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:31,383 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 795 transitions. [2024-11-24 01:13:31,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:13:31,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:31,384 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:31,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (19)] Forceful destruction successful, exit code 0 [2024-11-24 01:13:31,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:31,586 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:31,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:31,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1715522943, now seen corresponding path program 1 times [2024-11-24 01:13:31,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:31,589 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [53011960] [2024-11-24 01:13:31,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:31,589 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 01:13:31,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:31,591 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:31,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:31,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:32,001 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 01:13:32,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:32,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:13:32,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 01:13:32,165 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:32,165 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:32,252 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:32,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-24 01:13:32,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:32,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-24 01:13:32,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:32,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-24 01:13:32,845 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:32,845 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-11-24 01:13:33,140 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:33,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-24 01:13:33,517 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:33,518 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 65 treesize of output 76 [2024-11-24 01:13:33,868 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:33,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 80 treesize of output 79 [2024-11-24 01:13:34,565 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:34,565 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 92 treesize of output 94 [2024-11-24 01:13:34,814 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:34,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 99 [2024-11-24 01:13:34,863 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:34,864 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 99 [2024-11-24 01:13:35,257 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:35,258 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 107 treesize of output 51 [2024-11-24 01:13:35,495 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 652 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-24 01:13:35,495 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:35,495 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:35,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [53011960] [2024-11-24 01:13:35,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [53011960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:35,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:35,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:13:35,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272097356] [2024-11-24 01:13:35,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:35,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:13:35,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:35,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:13:35,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:13:35,497 INFO L87 Difference]: Start difference. First operand 599 states and 795 transitions. Second operand has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-24 01:13:40,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:40,313 INFO L93 Difference]: Finished difference Result 1133 states and 1490 transitions. [2024-11-24 01:13:40,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:13:40,314 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) Word has length 162 [2024-11-24 01:13:40,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:40,316 INFO L225 Difference]: With dead ends: 1133 [2024-11-24 01:13:40,316 INFO L226 Difference]: Without dead ends: 682 [2024-11-24 01:13:40,317 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:13:40,317 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 212 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 988 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:40,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 717 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 988 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-24 01:13:40,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2024-11-24 01:13:40,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 618. [2024-11-24 01:13:40,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 546 states have (on average 1.283882783882784) internal successors, (701), 551 states have internal predecessors, (701), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:13:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 821 transitions. [2024-11-24 01:13:40,434 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 821 transitions. Word has length 162 [2024-11-24 01:13:40,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:40,435 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 821 transitions. [2024-11-24 01:13:40,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.705882352941177) internal successors, (80), 17 states have internal predecessors, (80), 6 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 6 states have call predecessors, (20), 6 states have call successors, (20) [2024-11-24 01:13:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 821 transitions. [2024-11-24 01:13:40,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:13:40,436 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:40,436 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:40,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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)] Forceful destruction successful, exit code 0 [2024-11-24 01:13:40,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:40,637 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:40,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:40,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1333789569, now seen corresponding path program 1 times [2024-11-24 01:13:40,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:40,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560374831] [2024-11-24 01:13:40,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:40,638 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 01:13:40,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:40,640 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:40,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:40,944 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:13:40,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:40,989 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:40,989 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 40 treesize of output 16 [2024-11-24 01:13:41,018 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:41,018 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:41,018 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:41,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560374831] [2024-11-24 01:13:41,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560374831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:41,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:41,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:13:41,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047155582] [2024-11-24 01:13:41,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:41,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:41,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:41,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:41,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:13:41,019 INFO L87 Difference]: Start difference. First operand 618 states and 821 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:41,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:41,991 INFO L93 Difference]: Finished difference Result 1131 states and 1484 transitions. [2024-11-24 01:13:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:41,992 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-24 01:13:41,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:41,993 INFO L225 Difference]: With dead ends: 1131 [2024-11-24 01:13:41,993 INFO L226 Difference]: Without dead ends: 650 [2024-11-24 01:13:41,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 158 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 01:13:41,994 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 59 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:41,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 400 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:13:41,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-24 01:13:42,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 576. [2024-11-24 01:13:42,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 504 states have (on average 1.2718253968253967) internal successors, (641), 509 states have internal predecessors, (641), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:13:42,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 761 transitions. [2024-11-24 01:13:42,126 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 761 transitions. Word has length 162 [2024-11-24 01:13:42,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:42,127 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 761 transitions. [2024-11-24 01:13:42,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:42,127 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 761 transitions. [2024-11-24 01:13:42,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:13:42,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:42,129 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:42,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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)] Ended with exit code 0 [2024-11-24 01:13:42,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:42,330 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:42,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:42,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1586754338, now seen corresponding path program 1 times [2024-11-24 01:13:42,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:42,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060694784] [2024-11-24 01:13:42,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:42,332 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 01:13:42,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:42,334 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:42,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (22)] Waiting until timeout for monitored process [2024-11-24 01:13:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:42,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:13:42,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:42,663 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:13:42,664 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:42,664 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:42,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060694784] [2024-11-24 01:13:42,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060694784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:42,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:42,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:13:42,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991261517] [2024-11-24 01:13:42,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:42,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:13:42,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:42,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:13:42,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:13:42,665 INFO L87 Difference]: Start difference. First operand 576 states and 761 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:42,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:42,765 INFO L93 Difference]: Finished difference Result 1033 states and 1357 transitions. [2024-11-24 01:13:42,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:13:42,766 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 162 [2024-11-24 01:13:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:42,769 INFO L225 Difference]: With dead ends: 1033 [2024-11-24 01:13:42,769 INFO L226 Difference]: Without dead ends: 594 [2024-11-24 01:13:42,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 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 01:13:42,770 INFO L435 NwaCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:42,770 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 535 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:13:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2024-11-24 01:13:42,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2024-11-24 01:13:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 522 states have (on average 1.2624521072796935) internal successors, (659), 527 states have internal predecessors, (659), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:13:42,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 779 transitions. [2024-11-24 01:13:42,883 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 779 transitions. Word has length 162 [2024-11-24 01:13:42,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:42,884 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 779 transitions. [2024-11-24 01:13:42,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:13:42,884 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 779 transitions. [2024-11-24 01:13:42,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:13:42,885 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:42,885 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:42,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (22)] Ended with exit code 0 [2024-11-24 01:13:43,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:43,086 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:43,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:43,086 INFO L85 PathProgramCache]: Analyzing trace with hash -38071043, now seen corresponding path program 1 times [2024-11-24 01:13:43,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:43,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244027356] [2024-11-24 01:13:43,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:43,087 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 01:13:43,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:43,089 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:43,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (23)] Waiting until timeout for monitored process [2024-11-24 01:13:43,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:43,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-24 01:13:43,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:43,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:13:43,608 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 01:13:43,657 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 01:13:43,706 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 01:13:43,846 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:43,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:43,948 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:43,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-24 01:13:44,124 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:44,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-24 01:13:44,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:44,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-24 01:13:44,585 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:44,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-11-24 01:13:44,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:44,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-24 01:13:45,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:45,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 82 treesize of output 90 [2024-11-24 01:13:45,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:45,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 110 treesize of output 115 [2024-11-24 01:13:45,870 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:45,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 120 treesize of output 119 [2024-11-24 01:13:45,918 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:45,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 120 treesize of output 119 [2024-11-24 01:13:46,347 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:46,347 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 130 treesize of output 62 [2024-11-24 01:13:46,597 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 628 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2024-11-24 01:13:46,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:46,597 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:46,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244027356] [2024-11-24 01:13:46,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244027356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:46,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:46,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-24 01:13:46,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216727835] [2024-11-24 01:13:46,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:46,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-24 01:13:46,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:46,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-24 01:13:46,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:13:46,599 INFO L87 Difference]: Start difference. First operand 594 states and 779 transitions. Second operand has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-24 01:13:52,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:52,446 INFO L93 Difference]: Finished difference Result 1125 states and 1457 transitions. [2024-11-24 01:13:52,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:13:52,447 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) Word has length 162 [2024-11-24 01:13:52,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:52,450 INFO L225 Difference]: With dead ends: 1125 [2024-11-24 01:13:52,450 INFO L226 Difference]: Without dead ends: 668 [2024-11-24 01:13:52,451 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=118, Invalid=302, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:13:52,453 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 300 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 748 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:52,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 748 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-24 01:13:52,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-24 01:13:52,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 595. [2024-11-24 01:13:52,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 595 states, 523 states have (on average 1.2619502868068833) internal successors, (660), 528 states have internal predecessors, (660), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:13:52,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 780 transitions. [2024-11-24 01:13:52,593 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 780 transitions. Word has length 162 [2024-11-24 01:13:52,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:52,593 INFO L471 AbstractCegarLoop]: Abstraction has 595 states and 780 transitions. [2024-11-24 01:13:52,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.529411764705882) internal successors, (77), 17 states have internal predecessors, (77), 5 states have call successors, (20), 5 states have call predecessors, (20), 5 states have return successors, (20), 5 states have call predecessors, (20), 5 states have call successors, (20) [2024-11-24 01:13:52,594 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 780 transitions. [2024-11-24 01:13:52,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-24 01:13:52,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:52,595 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:52,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (23)] Ended with exit code 0 [2024-11-24 01:13:52,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:52,796 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:52,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:52,796 INFO L85 PathProgramCache]: Analyzing trace with hash 102477567, now seen corresponding path program 1 times [2024-11-24 01:13:52,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:52,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [495832494] [2024-11-24 01:13:52,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:52,797 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:13:52,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:52,799 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:52,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (24)] Waiting until timeout for monitored process [2024-11-24 01:13:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:53,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-24 01:13:53,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:53,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:13:53,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:13:53,270 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:13:53,326 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2024-11-24 01:13:53,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:53,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:53,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:53,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:53,636 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:53,636 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:53,742 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:53,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:53,895 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:53,895 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:53,996 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:53,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:13:54,271 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:54,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 52 treesize of output 51 [2024-11-24 01:13:54,384 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:54,384 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 54 [2024-11-24 01:13:54,406 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:54,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 54 [2024-11-24 01:13:54,603 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:54,603 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 77 treesize of output 33 [2024-11-24 01:13:54,767 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 368 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-24 01:13:54,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:13:54,767 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:13:54,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [495832494] [2024-11-24 01:13:54,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [495832494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:13:54,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:13:54,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-24 01:13:54,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062387359] [2024-11-24 01:13:54,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:13:54,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-24 01:13:54,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:13:54,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-24 01:13:54,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-24 01:13:54,769 INFO L87 Difference]: Start difference. First operand 595 states and 780 transitions. Second operand has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:13:58,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:13:58,132 INFO L93 Difference]: Finished difference Result 1126 states and 1459 transitions. [2024-11-24 01:13:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:13:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2024-11-24 01:13:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:13:58,135 INFO L225 Difference]: With dead ends: 1126 [2024-11-24 01:13:58,135 INFO L226 Difference]: Without dead ends: 668 [2024-11-24 01:13:58,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:13:58,136 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 182 mSDsluCounter, 624 mSDsCounter, 0 mSdLazyCounter, 998 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 729 SdHoareTripleChecker+Invalid, 1030 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:13:58,136 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 729 Invalid, 1030 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 998 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-24 01:13:58,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-11-24 01:13:58,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 596. [2024-11-24 01:13:58,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 524 states have (on average 1.2614503816793894) internal successors, (661), 529 states have internal predecessors, (661), 60 states have call successors, (60), 11 states have call predecessors, (60), 11 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:13:58,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 781 transitions. [2024-11-24 01:13:58,275 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 781 transitions. Word has length 162 [2024-11-24 01:13:58,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:13:58,275 INFO L471 AbstractCegarLoop]: Abstraction has 596 states and 781 transitions. [2024-11-24 01:13:58,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.461538461538462) internal successors, (71), 13 states have internal predecessors, (71), 3 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-24 01:13:58,276 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 781 transitions. [2024-11-24 01:13:58,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:13:58,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:13:58,277 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:13:58,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (24)] Ended with exit code 0 [2024-11-24 01:13:58,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:58,478 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:13:58,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:13:58,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1731578697, now seen corresponding path program 1 times [2024-11-24 01:13:58,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:13:58,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [686835832] [2024-11-24 01:13:58,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:13:58,479 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 01:13:58,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:13:58,481 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:13:58,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (25)] Waiting until timeout for monitored process [2024-11-24 01:13:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:13:58,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 01:13:58,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:13:58,936 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:13:59,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-24 01:13:59,200 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-24 01:13:59,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 29 [2024-11-24 01:13:59,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:59,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 37 [2024-11-24 01:13:59,809 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:13:59,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-24 01:14:00,059 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:00,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 52 [2024-11-24 01:14:00,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:00,296 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 91 treesize of output 99 [2024-11-24 01:14:00,500 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:00,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 102 [2024-11-24 01:14:00,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:00,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 102 [2024-11-24 01:14:01,023 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:01,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 97 treesize of output 45 [2024-11-24 01:14:01,102 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 569 proven. 30 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-24 01:14:01,102 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:14:01,396 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:01,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [686835832] [2024-11-24 01:14:01,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [686835832] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:01,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:14:01,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-24 01:14:01,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685771268] [2024-11-24 01:14:01,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:01,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:14:01,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:01,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:14:01,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2024-11-24 01:14:01,397 INFO L87 Difference]: Start difference. First operand 596 states and 781 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:14:01,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:01,968 INFO L93 Difference]: Finished difference Result 1066 states and 1381 transitions. [2024-11-24 01:14:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:14:01,969 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-24 01:14:01,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:01,971 INFO L225 Difference]: With dead ends: 1066 [2024-11-24 01:14:01,971 INFO L226 Difference]: Without dead ends: 607 [2024-11-24 01:14:01,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 310 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-24 01:14:01,972 INFO L435 NwaCegarLoop]: 105 mSDtfsCounter, 108 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:01,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 281 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 01:14:01,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2024-11-24 01:14:02,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 604. [2024-11-24 01:14:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 530 states have (on average 1.2528301886792452) internal successors, (664), 535 states have internal predecessors, (664), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-24 01:14:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 784 transitions. [2024-11-24 01:14:02,068 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 784 transitions. Word has length 164 [2024-11-24 01:14:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:02,068 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 784 transitions. [2024-11-24 01:14:02,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:14:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 784 transitions. [2024-11-24 01:14:02,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:14:02,069 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:02,070 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:02,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (25)] Ended with exit code 0 [2024-11-24 01:14:02,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:02,270 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:02,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:02,271 INFO L85 PathProgramCache]: Analyzing trace with hash -710510343, now seen corresponding path program 1 times [2024-11-24 01:14:02,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:02,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [956783678] [2024-11-24 01:14:02,271 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:02,271 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 01:14:02,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:02,273 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:02,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (26)] Waiting until timeout for monitored process [2024-11-24 01:14:02,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:02,761 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 01:14:02,765 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:03,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:14:03,364 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 46 [2024-11-24 01:14:03,448 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:03,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 110 treesize of output 88 [2024-11-24 01:14:03,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:03,613 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 125 treesize of output 91 [2024-11-24 01:14:03,643 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:03,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 176 treesize of output 124 [2024-11-24 01:14:04,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:04,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 266 treesize of output 100 [2024-11-24 01:14:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 01:14:04,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:05,204 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:05,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [956783678] [2024-11-24 01:14:05,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [956783678] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:05,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [206539057] [2024-11-24 01:14:05,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:05,205 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:14:05,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:14:05,207 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:14:05,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2024-11-24 01:14:06,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:06,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:14:06,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:07,188 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 15 treesize of output 1 [2024-11-24 01:14:07,819 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 65 treesize of output 44 [2024-11-24 01:14:08,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:08,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 92 treesize of output 80 [2024-11-24 01:14:08,249 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:08,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 103 treesize of output 83 [2024-11-24 01:14:08,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:08,297 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 110 [2024-11-24 01:14:09,272 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:09,272 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 212 treesize of output 100 [2024-11-24 01:14:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 01:14:09,299 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:09,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [206539057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:09,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:14:09,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2024-11-24 01:14:09,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282087019] [2024-11-24 01:14:09,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:14:09,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:14:09,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:09,582 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:14:09,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=507, Unknown=0, NotChecked=0, Total=600 [2024-11-24 01:14:09,582 INFO L87 Difference]: Start difference. First operand 604 states and 784 transitions. Second operand has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-24 01:14:16,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:16,372 INFO L93 Difference]: Finished difference Result 1168 states and 1507 transitions. [2024-11-24 01:14:16,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-24 01:14:16,373 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 164 [2024-11-24 01:14:16,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:16,377 INFO L225 Difference]: With dead ends: 1168 [2024-11-24 01:14:16,378 INFO L226 Difference]: Without dead ends: 1166 [2024-11-24 01:14:16,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=224, Invalid=966, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 01:14:16,379 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 402 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:16,379 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 772 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-24 01:14:16,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-11-24 01:14:16,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1161. [2024-11-24 01:14:16,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1034 states have (on average 1.2553191489361701) internal successors, (1298), 1045 states have internal predecessors, (1298), 101 states have call successors, (101), 25 states have call predecessors, (101), 25 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:14:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1500 transitions. [2024-11-24 01:14:16,665 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1500 transitions. Word has length 164 [2024-11-24 01:14:16,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:16,666 INFO L471 AbstractCegarLoop]: Abstraction has 1161 states and 1500 transitions. [2024-11-24 01:14:16,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 6.476190476190476) internal successors, (136), 20 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-24 01:14:16,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1500 transitions. [2024-11-24 01:14:16,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:14:16,669 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:16,669 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:16,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (26)] Ended with exit code 0 [2024-11-24 01:14:16,876 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2024-11-24 01:14:17,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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=3,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 01:14:17,070 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:17,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:17,071 INFO L85 PathProgramCache]: Analyzing trace with hash -708663301, now seen corresponding path program 1 times [2024-11-24 01:14:17,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:17,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1656541018] [2024-11-24 01:14:17,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:17,071 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 01:14:17,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:17,073 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:17,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (28)] Waiting until timeout for monitored process [2024-11-24 01:14:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:17,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-24 01:14:17,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:17,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:14:17,564 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-11-24 01:14:17,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2024-11-24 01:14:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:14:17,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:17,667 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:17,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1656541018] [2024-11-24 01:14:17,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1656541018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:17,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:17,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:14:17,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423878350] [2024-11-24 01:14:17,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:17,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:14:17,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:17,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:14:17,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:14:17,669 INFO L87 Difference]: Start difference. First operand 1161 states and 1500 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:14:18,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:18,803 INFO L93 Difference]: Finished difference Result 3143 states and 4038 transitions. [2024-11-24 01:14:18,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:14:18,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-24 01:14:18,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:18,813 INFO L225 Difference]: With dead ends: 3143 [2024-11-24 01:14:18,813 INFO L226 Difference]: Without dead ends: 2210 [2024-11-24 01:14:18,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:14:18,815 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 107 mSDsluCounter, 575 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:18,816 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 744 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:14:18,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2024-11-24 01:14:19,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1689. [2024-11-24 01:14:19,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1689 states, 1562 states have (on average 1.2740076824583866) internal successors, (1990), 1573 states have internal predecessors, (1990), 101 states have call successors, (101), 25 states have call predecessors, (101), 25 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:14:19,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1689 states to 1689 states and 2192 transitions. [2024-11-24 01:14:19,176 INFO L78 Accepts]: Start accepts. Automaton has 1689 states and 2192 transitions. Word has length 164 [2024-11-24 01:14:19,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:19,177 INFO L471 AbstractCegarLoop]: Abstraction has 1689 states and 2192 transitions. [2024-11-24 01:14:19,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:14:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 1689 states and 2192 transitions. [2024-11-24 01:14:19,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:14:19,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:19,180 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:19,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (28)] Ended with exit code 0 [2024-11-24 01:14:19,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:19,380 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:19,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:19,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1518009927, now seen corresponding path program 1 times [2024-11-24 01:14:19,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:19,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [45311598] [2024-11-24 01:14:19,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:19,382 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 01:14:19,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:19,384 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:19,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (29)] Waiting until timeout for monitored process [2024-11-24 01:14:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:19,849 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 01:14:19,853 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:19,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:14:20,190 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 34 [2024-11-24 01:14:20,424 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:20,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:14:20,703 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:20,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:14:20,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:20,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 27 [2024-11-24 01:14:21,128 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:21,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 39 [2024-11-24 01:14:21,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:21,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 72 [2024-11-24 01:14:21,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:21,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 76 [2024-11-24 01:14:21,483 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:21,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 80 treesize of output 76 [2024-11-24 01:14:22,024 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:22,025 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 37 [2024-11-24 01:14:22,074 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 420 proven. 48 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-24 01:14:22,074 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:22,263 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:22,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [45311598] [2024-11-24 01:14:22,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [45311598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:22,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2065642618] [2024-11-24 01:14:22,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:22,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:14:22,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:14:22,265 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:14:22,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2024-11-24 01:14:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:23,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:14:23,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:23,534 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 15 treesize of output 1 [2024-11-24 01:14:24,029 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 34 treesize of output 18 [2024-11-24 01:14:24,139 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 26 [2024-11-24 01:14:24,449 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:24,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 37 [2024-11-24 01:14:24,743 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:24,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-24 01:14:24,998 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:24,998 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 52 [2024-11-24 01:14:25,163 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:25,164 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 78 treesize of output 81 [2024-11-24 01:14:25,404 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:25,404 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 84 [2024-11-24 01:14:25,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:25,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 89 treesize of output 84 [2024-11-24 01:14:26,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:26,010 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 82 treesize of output 46 [2024-11-24 01:14:26,060 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 494 proven. 48 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-24 01:14:26,060 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:26,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2065642618] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:26,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:14:26,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2024-11-24 01:14:26,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670511775] [2024-11-24 01:14:26,179 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:14:26,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-24 01:14:26,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:26,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-24 01:14:26,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=737, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:14:26,180 INFO L87 Difference]: Start difference. First operand 1689 states and 2192 transitions. Second operand has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) [2024-11-24 01:14:35,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:35,893 INFO L93 Difference]: Finished difference Result 3184 states and 4059 transitions. [2024-11-24 01:14:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 01:14:35,894 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) Word has length 164 [2024-11-24 01:14:35,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:35,897 INFO L225 Difference]: With dead ends: 3184 [2024-11-24 01:14:35,897 INFO L226 Difference]: Without dead ends: 1803 [2024-11-24 01:14:35,899 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 376 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 819 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=733, Invalid=2807, Unknown=0, NotChecked=0, Total=3540 [2024-11-24 01:14:35,899 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 407 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 1620 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 1620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:35,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 629 Invalid, 1786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 1620 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2024-11-24 01:14:35,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2024-11-24 01:14:36,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 1749. [2024-11-24 01:14:36,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1749 states, 1607 states have (on average 1.251400124455507) internal successors, (2011), 1618 states have internal predecessors, (2011), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:14:36,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1749 states to 1749 states and 2213 transitions. [2024-11-24 01:14:36,230 INFO L78 Accepts]: Start accepts. Automaton has 1749 states and 2213 transitions. Word has length 164 [2024-11-24 01:14:36,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:36,230 INFO L471 AbstractCegarLoop]: Abstraction has 1749 states and 2213 transitions. [2024-11-24 01:14:36,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 24 states have (on average 6.25) internal successors, (150), 24 states have internal predecessors, (150), 10 states have call successors, (40), 9 states have call predecessors, (40), 10 states have return successors, (40), 9 states have call predecessors, (40), 10 states have call successors, (40) [2024-11-24 01:14:36,231 INFO L276 IsEmpty]: Start isEmpty. Operand 1749 states and 2213 transitions. [2024-11-24 01:14:36,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:14:36,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:36,233 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:36,242 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (29)] Ended with exit code 0 [2024-11-24 01:14:36,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2024-11-24 01:14:36,634 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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=3,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 01:14:36,634 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:36,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:36,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1568833127, now seen corresponding path program 1 times [2024-11-24 01:14:36,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:36,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393655074] [2024-11-24 01:14:36,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:36,635 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 01:14:36,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:36,636 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:36,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (31)] Waiting until timeout for monitored process [2024-11-24 01:14:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:37,039 INFO L256 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-24 01:14:37,041 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:14:37,070 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:37,070 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:37,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [393655074] [2024-11-24 01:14:37,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [393655074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:37,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:37,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:14:37,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690811323] [2024-11-24 01:14:37,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:37,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:14:37,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:37,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:14:37,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:14:37,071 INFO L87 Difference]: Start difference. First operand 1749 states and 2213 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:14:37,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:37,392 INFO L93 Difference]: Finished difference Result 3266 states and 4108 transitions. [2024-11-24 01:14:37,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:14:37,393 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-24 01:14:37,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:37,398 INFO L225 Difference]: With dead ends: 3266 [2024-11-24 01:14:37,398 INFO L226 Difference]: Without dead ends: 1845 [2024-11-24 01:14:37,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:14:37,401 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:37,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 659 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:14:37,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2024-11-24 01:14:37,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1773. [2024-11-24 01:14:37,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1631 states have (on average 1.2477007970570202) internal successors, (2035), 1642 states have internal predecessors, (2035), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:14:37,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2237 transitions. [2024-11-24 01:14:37,698 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2237 transitions. Word has length 164 [2024-11-24 01:14:37,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:37,698 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 2237 transitions. [2024-11-24 01:14:37,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:14:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2237 transitions. [2024-11-24 01:14:37,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:14:37,701 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:37,701 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:37,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (31)] Ended with exit code 0 [2024-11-24 01:14:37,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:37,902 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:37,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:37,902 INFO L85 PathProgramCache]: Analyzing trace with hash 867768549, now seen corresponding path program 1 times [2024-11-24 01:14:37,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:37,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406707244] [2024-11-24 01:14:37,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:37,903 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 01:14:37,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:37,904 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:37,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (32)] Waiting until timeout for monitored process [2024-11-24 01:14:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:38,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-24 01:14:38,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:38,355 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:38,355 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 37 treesize of output 17 [2024-11-24 01:14:38,399 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:14:38,399 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:38,399 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:38,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406707244] [2024-11-24 01:14:38,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406707244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:38,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:38,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:14:38,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973326720] [2024-11-24 01:14:38,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:38,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:14:38,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:38,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:14:38,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:14:38,401 INFO L87 Difference]: Start difference. First operand 1773 states and 2237 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:14:40,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:40,532 INFO L93 Difference]: Finished difference Result 4403 states and 5417 transitions. [2024-11-24 01:14:40,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:14:40,533 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 164 [2024-11-24 01:14:40,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:40,543 INFO L225 Difference]: With dead ends: 4403 [2024-11-24 01:14:40,543 INFO L226 Difference]: Without dead ends: 2958 [2024-11-24 01:14:40,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 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 01:14:40,545 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 101 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:40,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 288 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:14:40,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2958 states. [2024-11-24 01:14:40,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2958 to 2325. [2024-11-24 01:14:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 2183 states have (on average 1.2253779202931745) internal successors, (2675), 2194 states have internal predecessors, (2675), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:14:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 2877 transitions. [2024-11-24 01:14:40,816 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 2877 transitions. Word has length 164 [2024-11-24 01:14:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:40,816 INFO L471 AbstractCegarLoop]: Abstraction has 2325 states and 2877 transitions. [2024-11-24 01:14:40,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:14:40,817 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 2877 transitions. [2024-11-24 01:14:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:14:40,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:40,819 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:40,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (32)] Forceful destruction successful, exit code 0 [2024-11-24 01:14:41,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:41,020 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:41,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:41,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1214564733, now seen corresponding path program 1 times [2024-11-24 01:14:41,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:41,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1234252915] [2024-11-24 01:14:41,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:41,020 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 01:14:41,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:41,022 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:41,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (33)] Waiting until timeout for monitored process [2024-11-24 01:14:41,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:41,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 01:14:41,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:41,471 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:14:41,725 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 30 [2024-11-24 01:14:41,935 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:41,935 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-24 01:14:42,251 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:42,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:14:42,432 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:42,432 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-24 01:14:42,667 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:42,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 58 [2024-11-24 01:14:42,780 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:42,780 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 92 treesize of output 91 [2024-11-24 01:14:42,915 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:42,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 98 treesize of output 46 [2024-11-24 01:14:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 458 proven. 48 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-24 01:14:42,991 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:43,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:43,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1234252915] [2024-11-24 01:14:43,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1234252915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:43,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [136343544] [2024-11-24 01:14:43,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:43,139 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:14:43,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:14:43,140 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:14:43,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2024-11-24 01:14:44,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:44,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 01:14:44,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:44,292 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 01:14:44,958 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 01:14:45,112 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 39 treesize of output 30 [2024-11-24 01:14:45,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:45,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 41 [2024-11-24 01:14:45,851 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:45,851 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 40 treesize of output 34 [2024-11-24 01:14:46,185 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:46,186 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2024-11-24 01:14:46,370 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:46,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 68 treesize of output 75 [2024-11-24 01:14:46,584 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:46,584 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 72 treesize of output 40 [2024-11-24 01:14:46,629 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 504 proven. 48 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-11-24 01:14:46,630 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:46,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [136343544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:46,681 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:14:46,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 29 [2024-11-24 01:14:46,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318418205] [2024-11-24 01:14:46,682 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:14:46,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-24 01:14:46,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:46,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-24 01:14:46,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2024-11-24 01:14:46,683 INFO L87 Difference]: Start difference. First operand 2325 states and 2877 transitions. Second operand has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) [2024-11-24 01:14:56,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:56,096 INFO L93 Difference]: Finished difference Result 3608 states and 4425 transitions. [2024-11-24 01:14:56,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-24 01:14:56,097 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) Word has length 164 [2024-11-24 01:14:56,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:56,100 INFO L225 Difference]: With dead ends: 3608 [2024-11-24 01:14:56,100 INFO L226 Difference]: Without dead ends: 1563 [2024-11-24 01:14:56,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 375 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 625 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=631, Invalid=2125, Unknown=0, NotChecked=0, Total=2756 [2024-11-24 01:14:56,102 INFO L435 NwaCegarLoop]: 66 mSDtfsCounter, 558 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 1407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 172 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:56,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 524 Invalid, 1407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [172 Valid, 1235 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-24 01:14:56,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2024-11-24 01:14:56,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1509. [2024-11-24 01:14:56,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1367 states have (on average 1.1814191660570592) internal successors, (1615), 1378 states have internal predecessors, (1615), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:14:56,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 1817 transitions. [2024-11-24 01:14:56,377 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 1817 transitions. Word has length 164 [2024-11-24 01:14:56,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:56,377 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 1817 transitions. [2024-11-24 01:14:56,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 25 states have (on average 5.36) internal successors, (134), 25 states have internal predecessors, (134), 11 states have call successors, (40), 10 states have call predecessors, (40), 11 states have return successors, (40), 10 states have call predecessors, (40), 11 states have call successors, (40) [2024-11-24 01:14:56,378 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 1817 transitions. [2024-11-24 01:14:56,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:14:56,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:56,380 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:14:56,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2024-11-24 01:14:56,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (33)] Ended with exit code 0 [2024-11-24 01:14:56,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:56,780 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:56,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:56,781 INFO L85 PathProgramCache]: Analyzing trace with hash -345375303, now seen corresponding path program 1 times [2024-11-24 01:14:56,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:56,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671303340] [2024-11-24 01:14:56,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:56,781 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 01:14:56,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:56,783 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:14:56,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (35)] Waiting until timeout for monitored process [2024-11-24 01:14:57,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:57,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 01:14:57,274 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:57,499 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-24 01:14:57,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 46 [2024-11-24 01:14:57,884 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:57,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 49 [2024-11-24 01:14:57,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:57,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 143 treesize of output 82 [2024-11-24 01:14:58,379 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:14:58,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 233 treesize of output 85 [2024-11-24 01:14:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 01:14:58,475 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:14:58,858 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671303340] [2024-11-24 01:14:58,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671303340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:14:58,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1955697062] [2024-11-24 01:14:58,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:58,858 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:14:58,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:14:58,860 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:14:58,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2024-11-24 01:15:00,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:00,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 01:15:00,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:00,652 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 15 treesize of output 1 [2024-11-24 01:15:01,141 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 65 treesize of output 44 [2024-11-24 01:15:01,306 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:01,307 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 47 [2024-11-24 01:15:01,340 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:01,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 74 [2024-11-24 01:15:02,006 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:02,006 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 185 treesize of output 85 [2024-11-24 01:15:02,030 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 01:15:02,030 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:15:02,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1955697062] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:15:02,280 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:15:02,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2024-11-24 01:15:02,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121370568] [2024-11-24 01:15:02,280 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:15:02,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:15:02,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:15:02,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:15:02,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:15:02,282 INFO L87 Difference]: Start difference. First operand 1509 states and 1817 transitions. Second operand has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-24 01:15:09,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:15:09,703 INFO L93 Difference]: Finished difference Result 1523 states and 1832 transitions. [2024-11-24 01:15:09,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-24 01:15:09,704 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) Word has length 164 [2024-11-24 01:15:09,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:15:09,709 INFO L225 Difference]: With dead ends: 1523 [2024-11-24 01:15:09,710 INFO L226 Difference]: Without dead ends: 1521 [2024-11-24 01:15:09,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=183, Invalid=809, Unknown=0, NotChecked=0, Total=992 [2024-11-24 01:15:09,710 INFO L435 NwaCegarLoop]: 118 mSDtfsCounter, 377 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 377 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-24 01:15:09,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [377 Valid, 697 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1173 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-24 01:15:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-24 01:15:10,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1518. [2024-11-24 01:15:10,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1376 states have (on average 1.180232558139535) internal successors, (1624), 1387 states have internal predecessors, (1624), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:15:10,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1826 transitions. [2024-11-24 01:15:10,006 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1826 transitions. Word has length 164 [2024-11-24 01:15:10,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:15:10,006 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1826 transitions. [2024-11-24 01:15:10,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.157894736842105) internal successors, (136), 18 states have internal predecessors, (136), 4 states have call successors, (40), 4 states have call predecessors, (40), 4 states have return successors, (40), 4 states have call predecessors, (40), 4 states have call successors, (40) [2024-11-24 01:15:10,006 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1826 transitions. [2024-11-24 01:15:10,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-24 01:15:10,008 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:15:10,008 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:10,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (35)] Ended with exit code 0 [2024-11-24 01:15:10,214 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2024-11-24 01:15:10,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt [2024-11-24 01:15:10,409 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:15:10,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:15:10,409 INFO L85 PathProgramCache]: Analyzing trace with hash 182975995, now seen corresponding path program 1 times [2024-11-24 01:15:10,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:15:10,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [773360296] [2024-11-24 01:15:10,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:10,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:15:10,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:15:10,411 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:15:10,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (37)] Waiting until timeout for monitored process [2024-11-24 01:15:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:10,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:15:10,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:10,809 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 01:15:10,809 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:15:10,809 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:15:10,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [773360296] [2024-11-24 01:15:10,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [773360296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:15:10,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:15:10,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:15:10,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024007549] [2024-11-24 01:15:10,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:15:10,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:15:10,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:15:10,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:15:10,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:15:10,812 INFO L87 Difference]: Start difference. First operand 1518 states and 1826 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:15:11,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:15:11,178 INFO L93 Difference]: Finished difference Result 2857 states and 3434 transitions. [2024-11-24 01:15:11,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:15:11,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 164 [2024-11-24 01:15:11,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:15:11,184 INFO L225 Difference]: With dead ends: 2857 [2024-11-24 01:15:11,184 INFO L226 Difference]: Without dead ends: 1518 [2024-11-24 01:15:11,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 161 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 01:15:11,186 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 264 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:15:11,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 403 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:15:11,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2024-11-24 01:15:11,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1518. [2024-11-24 01:15:11,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1376 states have (on average 1.1787790697674418) internal successors, (1622), 1387 states have internal predecessors, (1622), 101 states have call successors, (101), 40 states have call predecessors, (101), 40 states have return successors, (101), 90 states have call predecessors, (101), 101 states have call successors, (101) [2024-11-24 01:15:11,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1824 transitions. [2024-11-24 01:15:11,569 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1824 transitions. Word has length 164 [2024-11-24 01:15:11,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:15:11,570 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1824 transitions. [2024-11-24 01:15:11,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-24 01:15:11,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1824 transitions. [2024-11-24 01:15:11,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:15:11,572 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:15:11,572 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:15:11,580 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (37)] Ended with exit code 0 [2024-11-24 01:15:11,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:15:11,773 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:15:11,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:15:11,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1860551738, now seen corresponding path program 1 times [2024-11-24 01:15:11,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:15:11,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130057386] [2024-11-24 01:15:11,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:11,774 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 01:15:11,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:15:11,775 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:15:11,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (38)] Waiting until timeout for monitored process [2024-11-24 01:15:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:12,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-24 01:15:12,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:12,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:15:12,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-24 01:15:12,949 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:12,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-24 01:15:13,129 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:13,129 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-24 01:15:13,339 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:13,340 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 45 [2024-11-24 01:15:13,440 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:13,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 82 [2024-11-24 01:15:13,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:13,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 86 treesize of output 85 [2024-11-24 01:15:13,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:13,632 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 86 treesize of output 85 [2024-11-24 01:15:13,850 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:13,850 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 144 treesize of output 140 [2024-11-24 01:15:15,422 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 436 proven. 30 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-24 01:15:15,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:15:20,350 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:15:20,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130057386] [2024-11-24 01:15:20,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130057386] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:15:20,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1493520963] [2024-11-24 01:15:20,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:15:20,351 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:15:20,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:15:20,352 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:15:20,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2024-11-24 01:15:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:15:21,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-24 01:15:21,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:21,944 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 01:15:23,384 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 33 treesize of output 17 [2024-11-24 01:15:23,822 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 33 treesize of output 17 [2024-11-24 01:15:23,963 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 33 treesize of output 17 [2024-11-24 01:15:24,108 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 30 treesize of output 25 [2024-11-24 01:15:26,010 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:26,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 36 [2024-11-24 01:15:28,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:28,180 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2024-11-24 01:15:28,805 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:28,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 44 [2024-11-24 01:15:29,535 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:29,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 56 [2024-11-24 01:15:29,940 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:29,940 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 77 treesize of output 80 [2024-11-24 01:15:30,446 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:30,446 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 78 [2024-11-24 01:15:30,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:30,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 78 [2024-11-24 01:15:31,577 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:15:31,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 127 treesize of output 127 [2024-11-24 01:15:38,113 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 584 proven. 66 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-24 01:15:38,113 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:16:03,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1493520963] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:16:03,495 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:16:03,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 22] total 37 [2024-11-24 01:16:03,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832840164] [2024-11-24 01:16:03,495 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:16:03,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-24 01:16:03,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:16:03,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-24 01:16:03,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=1820, Unknown=0, NotChecked=0, Total=2162 [2024-11-24 01:16:03,497 INFO L87 Difference]: Start difference. First operand 1518 states and 1824 transitions. Second operand has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) [2024-11-24 01:16:54,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:12,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:14,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:20,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:17:20,536 INFO L93 Difference]: Finished difference Result 3243 states and 3834 transitions. [2024-11-24 01:17:20,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-24 01:17:20,540 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) Word has length 165 [2024-11-24 01:17:20,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:17:20,546 INFO L225 Difference]: With dead ends: 3243 [2024-11-24 01:17:20,546 INFO L226 Difference]: Without dead ends: 1993 [2024-11-24 01:17:20,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 353 SyntacticMatches, 9 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1451 ImplicationChecksByTransitivity, 62.9s TimeCoverageRelationStatistics Valid=939, Invalid=4173, Unknown=0, NotChecked=0, Total=5112 [2024-11-24 01:17:20,550 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 833 mSDsluCounter, 746 mSDsCounter, 0 mSdLazyCounter, 1896 mSolverCounterSat, 168 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 847 SdHoareTripleChecker+Valid, 837 SdHoareTripleChecker+Invalid, 2064 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 168 IncrementalHoareTripleChecker+Valid, 1896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:17:20,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [847 Valid, 837 Invalid, 2064 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [168 Valid, 1896 Invalid, 0 Unknown, 0 Unchecked, 53.2s Time] [2024-11-24 01:17:20,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2024-11-24 01:17:20,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1279. [2024-11-24 01:17:20,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1163 states have (on average 1.1891659501289769) internal successors, (1383), 1168 states have internal predecessors, (1383), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-24 01:17:20,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1529 transitions. [2024-11-24 01:17:20,831 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1529 transitions. Word has length 165 [2024-11-24 01:17:20,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:17:20,831 INFO L471 AbstractCegarLoop]: Abstraction has 1279 states and 1529 transitions. [2024-11-24 01:17:20,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 32 states have (on average 4.71875) internal successors, (151), 35 states have internal predecessors, (151), 14 states have call successors, (40), 11 states have call predecessors, (40), 14 states have return successors, (40), 9 states have call predecessors, (40), 14 states have call successors, (40) [2024-11-24 01:17:20,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1529 transitions. [2024-11-24 01:17:20,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:17:20,832 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:17:20,832 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:17:20,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2024-11-24 01:17:21,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (38)] Ended with exit code 0 [2024-11-24 01:17:21,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:17:21,233 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:17:21,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:17:21,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1720003128, now seen corresponding path program 1 times [2024-11-24 01:17:21,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:17:21,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [920245922] [2024-11-24 01:17:21,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:17:21,234 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 01:17:21,234 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:17:21,238 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:17:21,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (40)] Waiting until timeout for monitored process [2024-11-24 01:17:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:17:21,741 INFO L256 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 01:17:21,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:17:23,180 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:17:23,181 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 28 [2024-11-24 01:17:24,251 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:17:24,251 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:17:24,251 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:17:24,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [920245922] [2024-11-24 01:17:24,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [920245922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:17:24,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:17:24,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:17:24,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163336105] [2024-11-24 01:17:24,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:17:24,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:17:24,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:17:24,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:17:24,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:17:24,253 INFO L87 Difference]: Start difference. First operand 1279 states and 1529 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:17:25,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:17:29,919 WARN L539 Checker$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 01:17:35,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:40,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:46,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:17:51,101 WARN L539 Checker$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 01:17:57,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:18:01,598 WARN L539 Checker$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 01:18:05,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:18:07,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:18:12,158 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:18:14,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:18:20,761 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 01:18:22,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:18:22,099 INFO L93 Difference]: Finished difference Result 2677 states and 3187 transitions. [2024-11-24 01:18:22,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:18:22,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-11-24 01:18:22,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:18:22,168 INFO L225 Difference]: With dead ends: 2677 [2024-11-24 01:18:22,168 INFO L226 Difference]: Without dead ends: 1694 [2024-11-24 01:18:22,169 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:18:22,170 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 44 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 3 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:18:22,170 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 464 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 191 Invalid, 10 Unknown, 0 Unchecked, 56.8s Time] [2024-11-24 01:18:22,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1694 states. [2024-11-24 01:18:22,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1694 to 1495. [2024-11-24 01:18:22,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1379 states have (on average 1.18854242204496) internal successors, (1639), 1384 states have internal predecessors, (1639), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-24 01:18:22,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1785 transitions. [2024-11-24 01:18:22,417 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1785 transitions. Word has length 165 [2024-11-24 01:18:22,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:18:22,417 INFO L471 AbstractCegarLoop]: Abstraction has 1495 states and 1785 transitions. [2024-11-24 01:18:22,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:18:22,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1785 transitions. [2024-11-24 01:18:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:18:22,419 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:18:22,419 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:18:22,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (40)] Ended with exit code 0 [2024-11-24 01:18:22,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:18:22,620 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:18:22,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:18:22,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1435979458, now seen corresponding path program 1 times [2024-11-24 01:18:22,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:18:22,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1170618030] [2024-11-24 01:18:22,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:18:22,621 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 01:18:22,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:18:22,624 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:18:22,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (41)] Waiting until timeout for monitored process [2024-11-24 01:18:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:18:23,273 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-24 01:18:23,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:18:23,314 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 01:18:24,048 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 01:18:24,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 25 [2024-11-24 01:18:25,775 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:25,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-24 01:18:27,659 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 51 treesize of output 41 [2024-11-24 01:18:31,114 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:31,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 55 [2024-11-24 01:18:37,217 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:37,218 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 69 [2024-11-24 01:18:39,786 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:39,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 73 treesize of output 69 [2024-11-24 01:18:43,097 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:43,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 81 [2024-11-24 01:18:44,877 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:44,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 84 [2024-11-24 01:18:45,171 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:45,171 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 84 [2024-11-24 01:18:46,630 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:46,630 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 136 treesize of output 138 [2024-11-24 01:18:56,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:18:56,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 174 treesize of output 80 [2024-11-24 01:18:58,707 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 605 proven. 66 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2024-11-24 01:18:58,707 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:19:12,764 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:19:12,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1170618030] [2024-11-24 01:19:12,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1170618030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:19:12,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1991761123] [2024-11-24 01:19:12,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:19:12,765 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 01:19:12,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 01:19:12,767 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 01:19:12,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2024-11-24 01:19:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:19:13,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-24 01:19:13,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:19:16,085 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 15 treesize of output 1 [2024-11-24 01:19:20,786 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 22 treesize of output 21 [2024-11-24 01:19:23,514 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:19:23,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2024-11-24 01:19:26,819 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:19:26,819 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 43 [2024-11-24 01:19:30,694 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 49 treesize of output 46 [2024-11-24 01:19:39,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:19:39,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 58 treesize of output 58 [2024-11-24 01:19:50,018 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:19:50,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 78 [2024-11-24 01:19:55,572 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:19:55,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 75 treesize of output 81 [2024-11-24 01:20:04,066 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:20:04,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 99 [2024-11-24 01:20:07,649 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:20:07,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 97 treesize of output 102 [2024-11-24 01:20:08,096 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:20:08,096 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 36 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 97 treesize of output 102 [2024-11-24 01:20:08,489 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:20:08,490 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 28 case distinctions, treesize of input 106 treesize of output 58 [2024-11-24 01:20:11,639 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 617 proven. 66 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-11-24 01:20:11,639 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:20:20,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1991761123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:20:20,089 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:20:20,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 43 [2024-11-24 01:20:20,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667186108] [2024-11-24 01:20:20,089 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:20:20,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-24 01:20:20,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:20:20,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-24 01:20:20,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=373, Invalid=2077, Unknown=0, NotChecked=0, Total=2450 [2024-11-24 01:20:20,091 INFO L87 Difference]: Start difference. First operand 1495 states and 1785 transitions. Second operand has 43 states, 37 states have (on average 4.783783783783784) internal successors, (177), 42 states have internal predecessors, (177), 19 states have call successors, (40), 13 states have call predecessors, (40), 19 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) [2024-11-24 01:21:14,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:21:44,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:21:55,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:21:57,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:21:59,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:22:23,239 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:22:31,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:22:40,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:22:43,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:22:55,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:22:57,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:23:15,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:23:20,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 01:23:21,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:21,065 INFO L93 Difference]: Finished difference Result 3161 states and 3727 transitions. [2024-11-24 01:23:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-24 01:23:21,072 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 37 states have (on average 4.783783783783784) internal successors, (177), 42 states have internal predecessors, (177), 19 states have call successors, (40), 13 states have call predecessors, (40), 19 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) Word has length 165 [2024-11-24 01:23:21,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:21,078 INFO L225 Difference]: With dead ends: 3161 [2024-11-24 01:23:21,078 INFO L226 Difference]: Without dead ends: 1978 [2024-11-24 01:23:21,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 361 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1755 ImplicationChecksByTransitivity, 115.4s TimeCoverageRelationStatistics Valid=1279, Invalid=5693, Unknown=0, NotChecked=0, Total=6972 [2024-11-24 01:23:21,082 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 837 mSDsluCounter, 1405 mSDsCounter, 0 mSdLazyCounter, 2477 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 2477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:21,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1521 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 2477 Invalid, 0 Unknown, 0 Unchecked, 124.9s Time] [2024-11-24 01:23:21,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2024-11-24 01:23:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 1457. [2024-11-24 01:23:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 1341 states have (on average 1.1819537658463832) internal successors, (1585), 1346 states have internal predecessors, (1585), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-24 01:23:21,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1731 transitions. [2024-11-24 01:23:21,370 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1731 transitions. Word has length 165 [2024-11-24 01:23:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:21,370 INFO L471 AbstractCegarLoop]: Abstraction has 1457 states and 1731 transitions. [2024-11-24 01:23:21,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 37 states have (on average 4.783783783783784) internal successors, (177), 42 states have internal predecessors, (177), 19 states have call successors, (40), 13 states have call predecessors, (40), 19 states have return successors, (40), 14 states have call predecessors, (40), 19 states have call successors, (40) [2024-11-24 01:23:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1731 transitions. [2024-11-24 01:23:21,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-24 01:23:21,375 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:21,376 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:23:21,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2024-11-24 01:23:21,584 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (41)] Ended with exit code 0 [2024-11-24 01:23:21,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:23:21,777 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:21,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1809264774, now seen corresponding path program 1 times [2024-11-24 01:23:21,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:23:21,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [209112478] [2024-11-24 01:23:21,778 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:21,778 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 01:23:21,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:23:21,779 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:23:21,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (43)] Waiting until timeout for monitored process [2024-11-24 01:23:22,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:22,451 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-24 01:23:22,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:23:22,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-24 01:23:27,192 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 52 treesize of output 24 [2024-11-24 01:23:32,030 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:32,030 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 42 [2024-11-24 01:23:35,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:35,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 54 [2024-11-24 01:23:37,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:37,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 71 treesize of output 82 [2024-11-24 01:23:38,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:38,618 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 81 treesize of output 95 [2024-11-24 01:23:40,031 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:40,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 98 [2024-11-24 01:23:40,840 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:40,840 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 122 treesize of output 121 [2024-11-24 01:23:47,930 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:23:47,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 204 treesize of output 104 [2024-11-24 01:23:50,507 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 367 proven. 24 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-11-24 01:23:50,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:23:55,811 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-11-24 01:23:55,812 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:23:55,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [209112478] [2024-11-24 01:23:55,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [209112478] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 01:23:55,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:23:55,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [23] total 26 [2024-11-24 01:23:55,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099430551] [2024-11-24 01:23:55,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:55,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:23:55,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:23:55,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:23:55,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=546, Unknown=0, NotChecked=0, Total=650 [2024-11-24 01:23:55,813 INFO L87 Difference]: Start difference. First operand 1457 states and 1731 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:24:07,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:07,204 INFO L93 Difference]: Finished difference Result 2913 states and 3439 transitions. [2024-11-24 01:24:07,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-24 01:24:07,205 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 165 [2024-11-24 01:24:07,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:07,209 INFO L225 Difference]: With dead ends: 2913 [2024-11-24 01:24:07,209 INFO L226 Difference]: Without dead ends: 1768 [2024-11-24 01:24:07,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 15.0s TimeCoverageRelationStatistics Valid=120, Invalid=750, Unknown=0, NotChecked=0, Total=870 [2024-11-24 01:24:07,211 INFO L435 NwaCegarLoop]: 186 mSDtfsCounter, 68 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:07,211 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 968 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2024-11-24 01:24:07,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2024-11-24 01:24:07,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1433. [2024-11-24 01:24:07,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1433 states, 1317 states have (on average 1.1807137433561123) internal successors, (1555), 1322 states have internal predecessors, (1555), 73 states have call successors, (73), 42 states have call predecessors, (73), 42 states have return successors, (73), 68 states have call predecessors, (73), 73 states have call successors, (73) [2024-11-24 01:24:07,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1433 states to 1433 states and 1701 transitions. [2024-11-24 01:24:07,497 INFO L78 Accepts]: Start accepts. Automaton has 1433 states and 1701 transitions. Word has length 165 [2024-11-24 01:24:07,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:07,497 INFO L471 AbstractCegarLoop]: Abstraction has 1433 states and 1701 transitions. [2024-11-24 01:24:07,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 1 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-24 01:24:07,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1433 states and 1701 transitions. [2024-11-24 01:24:07,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-24 01:24:07,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:07,498 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:24:07,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (43)] Ended with exit code 0 [2024-11-24 01:24:07,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:24:07,699 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:07,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:07,699 INFO L85 PathProgramCache]: Analyzing trace with hash -536907009, now seen corresponding path program 1 times [2024-11-24 01:24:07,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:24:07,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [8020642] [2024-11-24 01:24:07,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:07,700 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 01:24:07,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:24:07,701 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 01:24:07,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_92965b28-808d-4082-8c81-1f669970c356/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 (44)] Waiting until timeout for monitored process [2024-11-24 01:24:08,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:08,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:24:08,253 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:13,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-24 01:24:17,176 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 44 [2024-11-24 01:24:17,983 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:17,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 108 treesize of output 86 [2024-11-24 01:24:19,001 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:19,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 123 treesize of output 89 [2024-11-24 01:24:19,230 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:19,230 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 174 treesize of output 122 [2024-11-24 01:24:24,691 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:24:24,691 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 264 treesize of output 98 [2024-11-24 01:24:26,198 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-24 01:24:26,199 INFO L312 TraceCheckSpWp]: Computing backward predicates...