./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/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 e82610752a88d395729d794c88c73268443026b48dc2e1bfb9e59d87e1051314 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:45:05,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:45:05,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:45:05,240 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:45:05,240 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:45:05,281 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:45:05,282 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:45:05,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:45:05,282 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:45:05,282 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:45:05,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:45:05,283 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:45:05,283 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:45:05,283 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:45:05,283 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:45:05,283 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:45:05,284 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:45:05,284 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:45:05,284 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:45:05,284 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:45:05,285 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:45:05,285 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:45:05,285 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:45:05,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:45:05,285 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:45:05,285 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:45:05,285 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:45:05,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:45:05,285 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:45:05,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:05,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:45:05,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:05,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:05,286 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:45:05,286 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:05,286 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:45:05,286 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:05,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:05,287 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:45:05,287 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:45:05,287 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:45:05,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:45:05,287 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:45:05,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:45:05,287 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:45:05,287 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:45:05,288 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:45:05,288 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:45:05,289 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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/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 -> e82610752a88d395729d794c88c73268443026b48dc2e1bfb9e59d87e1051314 [2024-11-24 00:45:05,641 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:45:05,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:45:05,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:45:05,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:45:05,666 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:45:05,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i [2024-11-24 00:45:09,217 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data/4dc8a842e/e85be5875ae741e3a7c700657378f454/FLAGb819eaeaf [2024-11-24 00:45:09,597 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:45:09,600 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i [2024-11-24 00:45:09,615 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data/4dc8a842e/e85be5875ae741e3a7c700657378f454/FLAGb819eaeaf [2024-11-24 00:45:09,645 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data/4dc8a842e/e85be5875ae741e3a7c700657378f454 [2024-11-24 00:45:09,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:45:09,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:45:09,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:09,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:45:09,659 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:45:09,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:09" (1/1) ... [2024-11-24 00:45:09,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c85679 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:09, skipping insertion in model container [2024-11-24 00:45:09,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:09" (1/1) ... [2024-11-24 00:45:09,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:45:09,910 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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i[916,929] [2024-11-24 00:45:10,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:10,046 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:45:10,062 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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i[916,929] [2024-11-24 00:45:10,120 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:10,144 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:45:10,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10 WrapperNode [2024-11-24 00:45:10,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:10,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:10,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:45:10,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:45:10,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,261 INFO L138 Inliner]: procedures = 30, calls = 117, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 411 [2024-11-24 00:45:10,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:10,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:45:10,262 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:45:10,262 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:45:10,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,286 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,298 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-24 00:45:10,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,340 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,342 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,354 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,360 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:45:10,380 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:45:10,380 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:45:10,380 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:45:10,382 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (1/1) ... [2024-11-24 00:45:10,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:10,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:10,440 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:45:10,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:45:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:45:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-24 00:45:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-24 00:45:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-24 00:45:10,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-24 00:45:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-24 00:45:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-24 00:45:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:45:10,479 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:45:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 00:45:10,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:45:10,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:45:10,667 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:45:10,672 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:45:11,446 INFO L? ?]: Removed 110 outVars from TransFormulas that were not future-live. [2024-11-24 00:45:11,447 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:45:11,464 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:45:11,464 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:45:11,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:11 BoogieIcfgContainer [2024-11-24 00:45:11,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:45:11,468 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:45:11,469 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:45:11,475 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:45:11,475 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:45:09" (1/3) ... [2024-11-24 00:45:11,476 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e72367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:11, skipping insertion in model container [2024-11-24 00:45:11,476 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:10" (2/3) ... [2024-11-24 00:45:11,477 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e72367 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:45:11, skipping insertion in model container [2024-11-24 00:45:11,477 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:11" (3/3) ... [2024-11-24 00:45:11,478 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-22.i [2024-11-24 00:45:11,497 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:45:11,499 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-22.i that has 2 procedures, 105 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:45:11,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:45:11,586 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;@50528a31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:45:11,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:45:11,592 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:45:11,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 00:45:11,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:11,609 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:11,610 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:11,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:11,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1659460873, now seen corresponding path program 1 times [2024-11-24 00:45:11,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:11,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196464754] [2024-11-24 00:45:11,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:11,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:11,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:12,161 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-24 00:45:12,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:12,164 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196464754] [2024-11-24 00:45:12,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196464754] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:45:12,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939308443] [2024-11-24 00:45:12,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:12,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:45:12,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:12,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:45:12,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:45:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:12,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:45:12,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:45:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-24 00:45:12,566 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:45:12,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939308443] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:12,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:45:12,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 00:45:12,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744694280] [2024-11-24 00:45:12,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:12,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:45:12,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:12,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:45:12,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:45:12,610 INFO L87 Difference]: Start difference. First operand has 105 states, 93 states have (on average 1.4623655913978495) internal successors, (136), 94 states have internal predecessors, (136), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:45:12,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:12,643 INFO L93 Difference]: Finished difference Result 203 states and 311 transitions. [2024-11-24 00:45:12,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:45:12,645 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 90 [2024-11-24 00:45:12,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:12,652 INFO L225 Difference]: With dead ends: 203 [2024-11-24 00:45:12,652 INFO L226 Difference]: Without dead ends: 101 [2024-11-24 00:45:12,656 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 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 00:45:12,660 INFO L435 NwaCegarLoop]: 146 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, 146 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 00:45:12,661 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:12,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-24 00:45:12,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-24 00:45:12,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 90 states have (on average 1.4222222222222223) internal successors, (128), 90 states have internal predecessors, (128), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:45:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 146 transitions. [2024-11-24 00:45:12,727 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 146 transitions. Word has length 90 [2024-11-24 00:45:12,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:12,728 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 146 transitions. [2024-11-24 00:45:12,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:45:12,730 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 146 transitions. [2024-11-24 00:45:12,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-24 00:45:12,737 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:12,737 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:12,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 00:45:12,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 00:45:12,938 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:12,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:12,939 INFO L85 PathProgramCache]: Analyzing trace with hash 328924025, now seen corresponding path program 1 times [2024-11-24 00:45:12,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:12,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073622080] [2024-11-24 00:45:12,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:12,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:13,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:15,281 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:15,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:15,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073622080] [2024-11-24 00:45:15,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073622080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:15,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:15,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:15,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502133205] [2024-11-24 00:45:15,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:15,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:15,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:15,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:15,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:15,284 INFO L87 Difference]: Start difference. First operand 101 states and 146 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:17,218 INFO L93 Difference]: Finished difference Result 499 states and 725 transitions. [2024-11-24 00:45:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:45:17,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 90 [2024-11-24 00:45:17,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:17,224 INFO L225 Difference]: With dead ends: 499 [2024-11-24 00:45:17,224 INFO L226 Difference]: Without dead ends: 401 [2024-11-24 00:45:17,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:45:17,227 INFO L435 NwaCegarLoop]: 198 mSDtfsCounter, 342 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 793 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:17,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 629 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 793 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-24 00:45:17,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-11-24 00:45:17,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 282. [2024-11-24 00:45:17,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 251 states have (on average 1.4183266932270917) internal successors, (356), 251 states have internal predecessors, (356), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:45:17,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 410 transitions. [2024-11-24 00:45:17,285 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 410 transitions. Word has length 90 [2024-11-24 00:45:17,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:17,289 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 410 transitions. [2024-11-24 00:45:17,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:17,290 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 410 transitions. [2024-11-24 00:45:17,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-24 00:45:17,297 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:17,297 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:17,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:45:17,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:17,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:17,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1540153901, now seen corresponding path program 1 times [2024-11-24 00:45:17,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:17,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156399770] [2024-11-24 00:45:17,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:17,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:17,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:18,212 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:18,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:18,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156399770] [2024-11-24 00:45:18,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156399770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:18,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:18,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:18,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690082600] [2024-11-24 00:45:18,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:18,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:18,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:18,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:18,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:18,217 INFO L87 Difference]: Start difference. First operand 282 states and 410 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:18,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:18,814 INFO L93 Difference]: Finished difference Result 969 states and 1413 transitions. [2024-11-24 00:45:18,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:18,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 91 [2024-11-24 00:45:18,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:18,820 INFO L225 Difference]: With dead ends: 969 [2024-11-24 00:45:18,820 INFO L226 Difference]: Without dead ends: 690 [2024-11-24 00:45:18,822 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:18,823 INFO L435 NwaCegarLoop]: 162 mSDtfsCounter, 383 mSDsluCounter, 358 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:18,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 520 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:45:18,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-11-24 00:45:18,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 474. [2024-11-24 00:45:18,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 423 states have (on average 1.42080378250591) internal successors, (601), 423 states have internal predecessors, (601), 45 states have call successors, (45), 5 states have call predecessors, (45), 5 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-24 00:45:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 691 transitions. [2024-11-24 00:45:18,907 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 691 transitions. Word has length 91 [2024-11-24 00:45:18,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:18,910 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 691 transitions. [2024-11-24 00:45:18,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:18,911 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 691 transitions. [2024-11-24 00:45:18,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 00:45:18,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:18,917 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:18,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:45:18,917 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:18,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:18,918 INFO L85 PathProgramCache]: Analyzing trace with hash 522324476, now seen corresponding path program 1 times [2024-11-24 00:45:18,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:18,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22695027] [2024-11-24 00:45:18,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:18,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:19,065 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:19,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:19,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22695027] [2024-11-24 00:45:19,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22695027] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:19,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:19,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:19,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132049927] [2024-11-24 00:45:19,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:19,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:19,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:19,070 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:19,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:19,070 INFO L87 Difference]: Start difference. First operand 474 states and 691 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:19,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:19,232 INFO L93 Difference]: Finished difference Result 732 states and 1064 transitions. [2024-11-24 00:45:19,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:19,234 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 92 [2024-11-24 00:45:19,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:19,238 INFO L225 Difference]: With dead ends: 732 [2024-11-24 00:45:19,241 INFO L226 Difference]: Without dead ends: 261 [2024-11-24 00:45:19,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:19,244 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:19,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 250 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:45:19,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-24 00:45:19,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 245. [2024-11-24 00:45:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 214 states have (on average 1.3878504672897196) internal successors, (297), 214 states have internal predecessors, (297), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:45:19,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 351 transitions. [2024-11-24 00:45:19,324 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 351 transitions. Word has length 92 [2024-11-24 00:45:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:19,325 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 351 transitions. [2024-11-24 00:45:19,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:19,327 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 351 transitions. [2024-11-24 00:45:19,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:45:19,329 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:19,329 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:19,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:45:19,333 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:19,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:19,333 INFO L85 PathProgramCache]: Analyzing trace with hash 420939654, now seen corresponding path program 1 times [2024-11-24 00:45:19,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:19,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242490813] [2024-11-24 00:45:19,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:19,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:19,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:20,652 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:20,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:20,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242490813] [2024-11-24 00:45:20,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242490813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:20,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:20,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-24 00:45:20,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659757984] [2024-11-24 00:45:20,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:20,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:45:20,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:20,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:45:20,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:45:20,656 INFO L87 Difference]: Start difference. First operand 245 states and 351 transitions. Second operand has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:22,290 INFO L93 Difference]: Finished difference Result 1076 states and 1546 transitions. [2024-11-24 00:45:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:45:22,291 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 95 [2024-11-24 00:45:22,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:22,301 INFO L225 Difference]: With dead ends: 1076 [2024-11-24 00:45:22,302 INFO L226 Difference]: Without dead ends: 884 [2024-11-24 00:45:22,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:45:22,305 INFO L435 NwaCegarLoop]: 211 mSDtfsCounter, 937 mSDsluCounter, 738 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:22,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 949 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 674 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-24 00:45:22,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 884 states. [2024-11-24 00:45:22,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 884 to 627. [2024-11-24 00:45:22,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 556 states have (on average 1.3992805755395683) internal successors, (778), 556 states have internal predecessors, (778), 63 states have call successors, (63), 7 states have call predecessors, (63), 7 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-11-24 00:45:22,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 904 transitions. [2024-11-24 00:45:22,400 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 904 transitions. Word has length 95 [2024-11-24 00:45:22,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:22,402 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 904 transitions. [2024-11-24 00:45:22,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 8 states have internal predecessors, (53), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:22,402 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 904 transitions. [2024-11-24 00:45:22,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:45:22,404 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:22,406 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:22,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 00:45:22,407 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:22,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:22,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1007745668, now seen corresponding path program 1 times [2024-11-24 00:45:22,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:22,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048108564] [2024-11-24 00:45:22,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:22,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:22,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:24,030 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-24 00:45:24,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:24,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048108564] [2024-11-24 00:45:24,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048108564] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:45:24,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126208729] [2024-11-24 00:45:24,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:24,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:45:24,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:24,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:45:24,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:45:24,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:24,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-24 00:45:24,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:45:24,378 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 55 treesize of output 54 [2024-11-24 00:45:24,740 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 104 treesize of output 86 [2024-11-24 00:45:25,058 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 13 treesize of output 11 [2024-11-24 00:45:25,109 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 23 treesize of output 24 [2024-11-24 00:45:25,256 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:45:25,256 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 00:45:25,296 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:45:25,297 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 00:45:25,417 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-24 00:45:25,417 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:45:26,259 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:26,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126208729] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-24 00:45:26,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:45:26,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 9] total 20 [2024-11-24 00:45:26,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322108519] [2024-11-24 00:45:26,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:26,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:45:26,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:26,261 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:45:26,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=333, Unknown=0, NotChecked=0, Total=380 [2024-11-24 00:45:26,263 INFO L87 Difference]: Start difference. First operand 627 states and 904 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:26,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:26,988 INFO L93 Difference]: Finished difference Result 1203 states and 1739 transitions. [2024-11-24 00:45:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:45:26,989 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 95 [2024-11-24 00:45:26,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:26,996 INFO L225 Difference]: With dead ends: 1203 [2024-11-24 00:45:26,997 INFO L226 Difference]: Without dead ends: 730 [2024-11-24 00:45:27,003 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=407, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:45:27,004 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 120 mSDsluCounter, 448 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:27,004 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 637 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-24 00:45:27,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2024-11-24 00:45:27,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 724. [2024-11-24 00:45:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 643 states have (on average 1.3996889580093312) internal successors, (900), 643 states have internal predecessors, (900), 72 states have call successors, (72), 8 states have call predecessors, (72), 8 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-24 00:45:27,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1044 transitions. [2024-11-24 00:45:27,103 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1044 transitions. Word has length 95 [2024-11-24 00:45:27,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:27,105 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1044 transitions. [2024-11-24 00:45:27,105 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1044 transitions. [2024-11-24 00:45:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:45:27,107 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:27,108 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:27,120 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:45:27,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:45:27,309 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:27,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:27,309 INFO L85 PathProgramCache]: Analyzing trace with hash -86241146, now seen corresponding path program 1 times [2024-11-24 00:45:27,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:27,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996713332] [2024-11-24 00:45:27,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:27,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:27,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:28,551 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:28,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:28,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996713332] [2024-11-24 00:45:28,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996713332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:28,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:28,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:28,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536843099] [2024-11-24 00:45:28,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:28,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:28,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:28,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:28,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:28,554 INFO L87 Difference]: Start difference. First operand 724 states and 1044 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:29,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:29,442 INFO L93 Difference]: Finished difference Result 1363 states and 1958 transitions. [2024-11-24 00:45:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:45:29,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2024-11-24 00:45:29,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:29,448 INFO L225 Difference]: With dead ends: 1363 [2024-11-24 00:45:29,448 INFO L226 Difference]: Without dead ends: 688 [2024-11-24 00:45:29,450 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:45:29,451 INFO L435 NwaCegarLoop]: 168 mSDtfsCounter, 491 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:29,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 603 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:45:29,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-24 00:45:29,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 525. [2024-11-24 00:45:29,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 464 states have (on average 1.3922413793103448) internal successors, (646), 464 states have internal predecessors, (646), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:45:29,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 754 transitions. [2024-11-24 00:45:29,504 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 754 transitions. Word has length 96 [2024-11-24 00:45:29,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:29,504 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 754 transitions. [2024-11-24 00:45:29,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:29,505 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 754 transitions. [2024-11-24 00:45:29,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:45:29,506 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:29,507 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:29,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 00:45:29,507 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:29,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:29,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1520928257, now seen corresponding path program 1 times [2024-11-24 00:45:29,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:29,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561728605] [2024-11-24 00:45:29,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:29,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:29,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:31,276 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:31,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:31,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561728605] [2024-11-24 00:45:31,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561728605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:31,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:31,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:45:31,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374786536] [2024-11-24 00:45:31,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:31,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:45:31,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:31,283 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:45:31,283 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:45:31,283 INFO L87 Difference]: Start difference. First operand 525 states and 754 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:32,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:32,340 INFO L93 Difference]: Finished difference Result 1068 states and 1529 transitions. [2024-11-24 00:45:32,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:45:32,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-24 00:45:32,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:32,350 INFO L225 Difference]: With dead ends: 1068 [2024-11-24 00:45:32,353 INFO L226 Difference]: Without dead ends: 687 [2024-11-24 00:45:32,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-24 00:45:32,355 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 268 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 604 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 604 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:32,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 829 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 604 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:45:32,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2024-11-24 00:45:32,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 552. [2024-11-24 00:45:32,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 491 states have (on average 1.3890020366598779) internal successors, (682), 491 states have internal predecessors, (682), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:45:32,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 790 transitions. [2024-11-24 00:45:32,436 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 790 transitions. Word has length 97 [2024-11-24 00:45:32,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:32,437 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 790 transitions. [2024-11-24 00:45:32,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 790 transitions. [2024-11-24 00:45:32,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:45:32,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:32,443 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:32,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:45:32,444 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:32,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:32,444 INFO L85 PathProgramCache]: Analyzing trace with hash -628268982, now seen corresponding path program 1 times [2024-11-24 00:45:32,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:32,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743315348] [2024-11-24 00:45:32,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:32,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:32,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:33,885 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:33,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:33,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743315348] [2024-11-24 00:45:33,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743315348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:33,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:33,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:33,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448905588] [2024-11-24 00:45:33,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:33,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:33,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:33,887 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:33,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:33,888 INFO L87 Difference]: Start difference. First operand 552 states and 790 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:34,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:34,888 INFO L93 Difference]: Finished difference Result 1072 states and 1531 transitions. [2024-11-24 00:45:34,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-24 00:45:34,889 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-24 00:45:34,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:34,894 INFO L225 Difference]: With dead ends: 1072 [2024-11-24 00:45:34,894 INFO L226 Difference]: Without dead ends: 683 [2024-11-24 00:45:34,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-24 00:45:34,897 INFO L435 NwaCegarLoop]: 199 mSDtfsCounter, 411 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:34,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 833 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 00:45:34,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2024-11-24 00:45:34,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 544. [2024-11-24 00:45:34,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 483 states have (on average 1.3830227743271222) internal successors, (668), 483 states have internal predecessors, (668), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:45:34,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 776 transitions. [2024-11-24 00:45:34,955 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 776 transitions. Word has length 97 [2024-11-24 00:45:34,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:34,955 INFO L471 AbstractCegarLoop]: Abstraction has 544 states and 776 transitions. [2024-11-24 00:45:34,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:34,956 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 776 transitions. [2024-11-24 00:45:34,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:45:34,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:34,962 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:34,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 00:45:34,962 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:34,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:34,963 INFO L85 PathProgramCache]: Analyzing trace with hash -1378931136, now seen corresponding path program 1 times [2024-11-24 00:45:34,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:34,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299587352] [2024-11-24 00:45:34,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:34,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:35,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:35,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:35,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299587352] [2024-11-24 00:45:35,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299587352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:35,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:35,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:45:35,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986992305] [2024-11-24 00:45:35,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:35,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 00:45:35,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:35,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 00:45:35,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:45:35,608 INFO L87 Difference]: Start difference. First operand 544 states and 776 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:36,651 INFO L93 Difference]: Finished difference Result 1398 states and 1993 transitions. [2024-11-24 00:45:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:45:36,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-24 00:45:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:36,659 INFO L225 Difference]: With dead ends: 1398 [2024-11-24 00:45:36,659 INFO L226 Difference]: Without dead ends: 903 [2024-11-24 00:45:36,661 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:45:36,662 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 234 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 541 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:36,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 541 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:45:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 903 states. [2024-11-24 00:45:36,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 903 to 556. [2024-11-24 00:45:36,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 495 states have (on average 1.3797979797979798) internal successors, (683), 495 states have internal predecessors, (683), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:45:36,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 791 transitions. [2024-11-24 00:45:36,720 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 791 transitions. Word has length 97 [2024-11-24 00:45:36,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:36,720 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 791 transitions. [2024-11-24 00:45:36,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:36,721 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 791 transitions. [2024-11-24 00:45:36,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:45:36,723 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:36,723 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:36,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 00:45:36,724 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:36,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:36,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1316891522, now seen corresponding path program 1 times [2024-11-24 00:45:36,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:36,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329947478] [2024-11-24 00:45:36,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:36,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:36,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:37,701 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:37,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:37,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329947478] [2024-11-24 00:45:37,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329947478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:37,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:37,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 00:45:37,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331221477] [2024-11-24 00:45:37,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:37,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 00:45:37,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:37,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 00:45:37,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 00:45:37,705 INFO L87 Difference]: Start difference. First operand 556 states and 791 transitions. Second operand has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:45:38,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:38,155 INFO L93 Difference]: Finished difference Result 938 states and 1339 transitions. [2024-11-24 00:45:38,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 00:45:38,156 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 97 [2024-11-24 00:45:38,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:38,161 INFO L225 Difference]: With dead ends: 938 [2024-11-24 00:45:38,161 INFO L226 Difference]: Without dead ends: 744 [2024-11-24 00:45:38,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 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 00:45:38,162 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 152 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:38,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 441 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 00:45:38,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-24 00:45:38,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 560. [2024-11-24 00:45:38,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 499 states have (on average 1.374749498997996) internal successors, (686), 499 states have internal predecessors, (686), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:45:38,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 794 transitions. [2024-11-24 00:45:38,224 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 794 transitions. Word has length 97 [2024-11-24 00:45:38,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:38,225 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 794 transitions. [2024-11-24 00:45:38,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.0) internal successors, (55), 6 states have internal predecessors, (55), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:45:38,225 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 794 transitions. [2024-11-24 00:45:38,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-24 00:45:38,227 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:38,227 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:38,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 00:45:38,227 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:38,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:38,228 INFO L85 PathProgramCache]: Analyzing trace with hash -511230790, now seen corresponding path program 1 times [2024-11-24 00:45:38,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:38,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999285232] [2024-11-24 00:45:38,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:38,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:38,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:39,095 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:39,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:39,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999285232] [2024-11-24 00:45:39,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999285232] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:39,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:39,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-24 00:45:39,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890591663] [2024-11-24 00:45:39,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:39,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:45:39,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:39,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:45:39,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:45:39,098 INFO L87 Difference]: Start difference. First operand 560 states and 794 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:40,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:40,403 INFO L93 Difference]: Finished difference Result 1216 states and 1722 transitions. [2024-11-24 00:45:40,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-24 00:45:40,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 97 [2024-11-24 00:45:40,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:40,411 INFO L225 Difference]: With dead ends: 1216 [2024-11-24 00:45:40,411 INFO L226 Difference]: Without dead ends: 715 [2024-11-24 00:45:40,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:45:40,413 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 286 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:40,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 550 Invalid, 757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 00:45:40,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2024-11-24 00:45:40,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 560. [2024-11-24 00:45:40,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 499 states have (on average 1.374749498997996) internal successors, (686), 499 states have internal predecessors, (686), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 00:45:40,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 794 transitions. [2024-11-24 00:45:40,471 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 794 transitions. Word has length 97 [2024-11-24 00:45:40,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:40,472 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 794 transitions. [2024-11-24 00:45:40,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 794 transitions. [2024-11-24 00:45:40,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:45:40,474 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:40,474 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:40,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 00:45:40,474 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:40,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:40,475 INFO L85 PathProgramCache]: Analyzing trace with hash -72641074, now seen corresponding path program 1 times [2024-11-24 00:45:40,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:40,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506232096] [2024-11-24 00:45:40,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:40,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:40,744 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:45:40,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:40,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506232096] [2024-11-24 00:45:40,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506232096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:45:40,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:45:40,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:45:40,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149678235] [2024-11-24 00:45:40,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:45:40,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:45:40,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:40,746 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:45:40,746 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:40,747 INFO L87 Difference]: Start difference. First operand 560 states and 794 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:40,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:40,782 INFO L93 Difference]: Finished difference Result 776 states and 1098 transitions. [2024-11-24 00:45:40,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:45:40,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 98 [2024-11-24 00:45:40,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:40,785 INFO L225 Difference]: With dead ends: 776 [2024-11-24 00:45:40,786 INFO L226 Difference]: Without dead ends: 272 [2024-11-24 00:45:40,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:45:40,788 INFO L435 NwaCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:40,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 275 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:45:40,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-24 00:45:40,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 262. [2024-11-24 00:45:40,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 231 states have (on average 1.3376623376623376) internal successors, (309), 231 states have internal predecessors, (309), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:45:40,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 363 transitions. [2024-11-24 00:45:40,816 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 363 transitions. Word has length 98 [2024-11-24 00:45:40,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:40,816 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 363 transitions. [2024-11-24 00:45:40,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:45:40,816 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 363 transitions. [2024-11-24 00:45:40,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-24 00:45:40,818 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:40,818 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:40,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 00:45:40,818 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:40,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:40,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1291021946, now seen corresponding path program 1 times [2024-11-24 00:45:40,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:40,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611209205] [2024-11-24 00:45:40,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:40,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:40,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-24 00:45:41,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:45:41,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611209205] [2024-11-24 00:45:41,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611209205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:45:41,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025000151] [2024-11-24 00:45:41,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:41,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:45:41,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:41,955 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:45:41,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:45:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:45:42,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:45:42,479 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:45:42,487 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 24 treesize of output 9 [2024-11-24 00:45:42,502 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 9 treesize of output 3 [2024-11-24 00:45:42,854 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 42 treesize of output 26 [2024-11-24 00:45:42,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 26 [2024-11-24 00:45:43,103 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 32 treesize of output 20 [2024-11-24 00:45:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-24 00:45:43,177 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:45:44,196 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 57 treesize of output 39 [2024-11-24 00:45:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 21 proven. 3 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-24 00:45:44,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025000151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:45:44,671 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:45:44,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 10] total 22 [2024-11-24 00:45:44,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956717850] [2024-11-24 00:45:44,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:45:44,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-24 00:45:44,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:45:44,674 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-24 00:45:44,674 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=375, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:45:44,674 INFO L87 Difference]: Start difference. First operand 262 states and 363 transitions. Second operand has 22 states, 20 states have (on average 5.5) internal successors, (110), 22 states have internal predecessors, (110), 6 states have call successors, (27), 3 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-24 00:45:47,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:45:47,506 INFO L93 Difference]: Finished difference Result 647 states and 895 transitions. [2024-11-24 00:45:47,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 00:45:47,507 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 5.5) internal successors, (110), 22 states have internal predecessors, (110), 6 states have call successors, (27), 3 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 6 states have call successors, (27) Word has length 99 [2024-11-24 00:45:47,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:45:47,510 INFO L225 Difference]: With dead ends: 647 [2024-11-24 00:45:47,510 INFO L226 Difference]: Without dead ends: 448 [2024-11-24 00:45:47,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=279, Invalid=981, Unknown=0, NotChecked=0, Total=1260 [2024-11-24 00:45:47,513 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 405 mSDsluCounter, 763 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 405 SdHoareTripleChecker+Valid, 822 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-24 00:45:47,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [405 Valid, 822 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-24 00:45:47,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2024-11-24 00:45:47,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 272. [2024-11-24 00:45:47,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 240 states have (on average 1.3291666666666666) internal successors, (319), 240 states have internal predecessors, (319), 27 states have call successors, (27), 4 states have call predecessors, (27), 4 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:45:47,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 373 transitions. [2024-11-24 00:45:47,549 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 373 transitions. Word has length 99 [2024-11-24 00:45:47,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:45:47,550 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 373 transitions. [2024-11-24 00:45:47,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 5.5) internal successors, (110), 22 states have internal predecessors, (110), 6 states have call successors, (27), 3 states have call predecessors, (27), 6 states have return successors, (27), 4 states have call predecessors, (27), 6 states have call successors, (27) [2024-11-24 00:45:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 373 transitions. [2024-11-24 00:45:47,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-24 00:45:47,551 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:45:47,552 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:47,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:45:47,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-24 00:45:47,752 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:45:47,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:45:47,753 INFO L85 PathProgramCache]: Analyzing trace with hash -173005409, now seen corresponding path program 1 times [2024-11-24 00:45:47,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:45:47,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199612575] [2024-11-24 00:45:47,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:45:47,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:45:47,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:47,879 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:45:47,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:45:48,015 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:45:48,015 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:45:48,016 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 00:45:48,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 00:45:48,022 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:45:48,119 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:45:48,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:45:48 BoogieIcfgContainer [2024-11-24 00:45:48,123 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:45:48,124 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:45:48,124 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:45:48,124 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:45:48,125 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:45:11" (3/4) ... [2024-11-24 00:45:48,128 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:45:48,129 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:45:48,130 INFO L158 Benchmark]: Toolchain (without parser) took 38480.81ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 117.0MB in the beginning and 265.2MB in the end (delta: -148.2MB). Peak memory consumption was 162.2MB. Max. memory is 16.1GB. [2024-11-24 00:45:48,130 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:45:48,131 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.74ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 101.6MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:45:48,131 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.04ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 98.0MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:45:48,131 INFO L158 Benchmark]: Boogie Preprocessor took 113.51ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 95.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:45:48,132 INFO L158 Benchmark]: RCFGBuilder took 1084.55ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 64.3MB in the end (delta: 30.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:45:48,132 INFO L158 Benchmark]: TraceAbstraction took 36654.90ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 63.6MB in the beginning and 265.3MB in the end (delta: -201.7MB). Peak memory consumption was 111.9MB. Max. memory is 16.1GB. [2024-11-24 00:45:48,132 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 453.0MB. Free memory was 265.3MB in the beginning and 265.2MB in the end (delta: 93.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:45:48,134 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 117.4MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.74ms. Allocated memory is still 142.6MB. Free memory was 116.8MB in the beginning and 101.6MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.04ms. Allocated memory is still 142.6MB. Free memory was 101.6MB in the beginning and 98.0MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 113.51ms. Allocated memory is still 142.6MB. Free memory was 98.0MB in the beginning and 95.1MB in the end (delta: 2.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1084.55ms. Allocated memory is still 142.6MB. Free memory was 95.0MB in the beginning and 64.3MB in the end (delta: 30.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 36654.90ms. Allocated memory was 142.6MB in the beginning and 453.0MB in the end (delta: 310.4MB). Free memory was 63.6MB in the beginning and 265.3MB in the end (delta: -201.7MB). Peak memory consumption was 111.9MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 453.0MB. Free memory was 265.3MB in the beginning and 265.2MB in the end (delta: 93.4kB). 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 92, overapproximation of someBinaryFLOATComparisonOperation at line 90, overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 90, overapproximation of someBinaryFLOATComparisonOperation at line 88, overapproximation of someBinaryFLOATComparisonOperation at line 92, overapproximation of someBinaryFLOATComparisonOperation at line 102, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 77. Possible FailurePath: [L34] unsigned char isInitial = 0; [L35-L46] struct WrapperStruct00 WrapperStruct00 = { -5, 0, 256, 44772, 5.9, 7.6, 64.2, 128.75, 8, 3135928546 }; [L47] signed short int last_1_WrapperStruct00_var_1_1 = -5; [L48] unsigned long int last_1_WrapperStruct00_var_1_11 = 8; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L106] isInitial = 1 [L107] FCALL initially() [L109] CALL updateLastVariables() [L98] EXPR WrapperStruct00.var_1_1 [L98] last_1_WrapperStruct00_var_1_1 = WrapperStruct00.var_1_1 [L99] EXPR WrapperStruct00.var_1_11 [L99] last_1_WrapperStruct00_var_1_11 = WrapperStruct00.var_1_11 [L109] RET updateLastVariables() [L110] CALL updateVariables() [L81] WrapperStruct00.var_1_4 = __VERIFIER_nondet_uchar() [L82] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L82] 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=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L82] RET assume_abort_if_not(WrapperStruct00.var_1_4 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L83] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L83] CALL assume_abort_if_not(WrapperStruct00.var_1_4 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L83] RET assume_abort_if_not(WrapperStruct00.var_1_4 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L84] WrapperStruct00.var_1_6 = __VERIFIER_nondet_ushort() [L85] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L85] CALL assume_abort_if_not(WrapperStruct00.var_1_6 >= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L85] RET assume_abort_if_not(WrapperStruct00.var_1_6 >= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L86] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L86] CALL assume_abort_if_not(WrapperStruct00.var_1_6 <= 65534) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L86] RET assume_abort_if_not(WrapperStruct00.var_1_6 <= 65534) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L87] WrapperStruct00.var_1_8 = __VERIFIER_nondet_float() [L88] EXPR WrapperStruct00.var_1_8 [L88] EXPR WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F [L88] EXPR WrapperStruct00.var_1_8 [L88] EXPR WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L88] EXPR (WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 1152921.504606845700e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L88] CALL assume_abort_if_not((WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 1152921.504606845700e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L88] RET assume_abort_if_not((WrapperStruct00.var_1_8 >= -115292.1504606845700e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 1152921.504606845700e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L89] WrapperStruct00.var_1_9 = __VERIFIER_nondet_float() [L90] EXPR WrapperStruct00.var_1_9 [L90] EXPR WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F [L90] EXPR WrapperStruct00.var_1_9 [L90] EXPR WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L90] EXPR (WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L90] CALL assume_abort_if_not((WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L90] RET assume_abort_if_not((WrapperStruct00.var_1_9 >= -230584.3009213691390e+13F && WrapperStruct00.var_1_9 <= -1.0e-20F) || (WrapperStruct00.var_1_9 <= 2305843.009213691390e+12F && WrapperStruct00.var_1_9 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L91] WrapperStruct00.var_1_10 = __VERIFIER_nondet_float() [L92] EXPR WrapperStruct00.var_1_10 [L92] EXPR WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F [L92] EXPR WrapperStruct00.var_1_10 [L92] EXPR WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L92] EXPR (WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L92] CALL assume_abort_if_not((WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L92] RET assume_abort_if_not((WrapperStruct00.var_1_10 >= -461168.6018427382800e+13F && WrapperStruct00.var_1_10 <= -1.0e-20F) || (WrapperStruct00.var_1_10 <= 4611686.018427382800e+12F && WrapperStruct00.var_1_10 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L93] WrapperStruct00.var_1_12 = __VERIFIER_nondet_ulong() [L94] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L94] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= 2147483647) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L94] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= 2147483647) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L95] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L110] RET updateVariables() [L111] CALL step() [L52] signed long int stepLocal_0 = last_1_WrapperStruct00_var_1_1; [L53] WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L53] COND TRUE WrapperStruct00.var_1_4 [L54] WrapperStruct00.var_1_5 = last_1_WrapperStruct00_var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L60] EXPR WrapperStruct00.var_1_5 [L60] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L60] COND TRUE WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5 [L61] EXPR WrapperStruct00.var_1_5 [L61] WrapperStruct00.var_1_1 = (WrapperStruct00.var_1_5 + -16) [L67] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L67] EXPR WrapperStruct00.var_1_5 & last_1_WrapperStruct00_var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L67] COND TRUE last_1_WrapperStruct00_var_1_11 >= (WrapperStruct00.var_1_5 & last_1_WrapperStruct00_var_1_11) [L68] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR ((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR ((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)) [L68] EXPR WrapperStruct00.var_1_6 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR ((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] EXPR ((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L68] WrapperStruct00.var_1_11 = ((((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)))) [L76] EXPR WrapperStruct00.var_1_1 [L76] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5, stepLocal_0=-5] [L76] COND TRUE WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5 [L77] EXPR WrapperStruct00.var_1_8 [L77] EXPR WrapperStruct00.var_1_9 [L77] EXPR WrapperStruct00.var_1_10 [L77] WrapperStruct00.var_1_7 = (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10) [L111] RET step() [L112] CALL, EXPR property() [L102] EXPR WrapperStruct00.var_1_5 [L102] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR (WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1) [L102] EXPR WrapperStruct00.var_1_1 [L102] EXPR WrapperStruct00.var_1_5 [L102] EXPR (WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR ((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1)) [L102] EXPR WrapperStruct00.var_1_4 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1) [L102] EXPR WrapperStruct00.var_1_5 [L102] EXPR WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR ((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR (((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1))) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1) [L102] EXPR WrapperStruct00.var_1_1 [L102] EXPR WrapperStruct00.var_1_5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR (WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1 [L102] EXPR WrapperStruct00.var_1_7 [L102] EXPR WrapperStruct00.var_1_8 [L102] EXPR WrapperStruct00.var_1_9 [L102] EXPR WrapperStruct00.var_1_10 [L102] EXPR (WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR (((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1))) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102] EXPR ((((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1))) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1)) && ((last_1_WrapperStruct00_var_1_11 >= (WrapperStruct00.var_1_5 & last_1_WrapperStruct00_var_1_11)) ? (WrapperStruct00.var_1_11 == ((unsigned long int) ((((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)))))) : ((5.7 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned long int) last_1_WrapperStruct00_var_1_11)) : (WrapperStruct00.var_1_11 == ((unsigned long int) last_1_WrapperStruct00_var_1_11)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L102-L103] return ((((WrapperStruct00.var_1_5 == WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_1 == ((signed short int) (WrapperStruct00.var_1_5 + -16))) : (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_1 == ((signed short int) WrapperStruct00.var_1_5)) : 1)) && (WrapperStruct00.var_1_4 ? (WrapperStruct00.var_1_5 == ((unsigned short int) last_1_WrapperStruct00_var_1_1)) : ((last_1_WrapperStruct00_var_1_1 <= last_1_WrapperStruct00_var_1_1) ? (WrapperStruct00.var_1_5 == ((unsigned short int) ((((last_1_WrapperStruct00_var_1_11) > ((WrapperStruct00.var_1_6 - 8))) ? (last_1_WrapperStruct00_var_1_11) : ((WrapperStruct00.var_1_6 - 8)))))) : 1))) && ((WrapperStruct00.var_1_1 < WrapperStruct00.var_1_5) ? (WrapperStruct00.var_1_7 == ((float) (((10.25f + WrapperStruct00.var_1_8) + WrapperStruct00.var_1_9) + WrapperStruct00.var_1_10))) : 1)) && ((last_1_WrapperStruct00_var_1_11 >= (WrapperStruct00.var_1_5 & last_1_WrapperStruct00_var_1_11)) ? (WrapperStruct00.var_1_11 == ((unsigned long int) ((((((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) < ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11))) ? (((((((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) < (WrapperStruct00.var_1_6)) ? (((((50u) < (last_1_WrapperStruct00_var_1_11)) ? (50u) : (last_1_WrapperStruct00_var_1_11)))) : (WrapperStruct00.var_1_6)))) : ((WrapperStruct00.var_1_12 - last_1_WrapperStruct00_var_1_11)))))) : ((5.7 < WrapperStruct00.var_1_9) ? (WrapperStruct00.var_1_11 == ((unsigned long int) last_1_WrapperStruct00_var_1_11)) : (WrapperStruct00.var_1_11 == ((unsigned long int) last_1_WrapperStruct00_var_1_11)))) ; [L112] RET, EXPR property() [L112] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_11=8, last_1_WrapperStruct00_var_1_1=-5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 105 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 36.5s, OverallIterations: 15, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4030 SdHoareTripleChecker+Valid, 11.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4029 mSDsluCounter, 8025 SdHoareTripleChecker+Invalid, 9.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5954 mSDsCounter, 571 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6287 IncrementalHoareTripleChecker+Invalid, 6858 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 571 mSolverCounterUnsat, 2071 mSDtfsCounter, 6287 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 660 GetRequests, 516 SyntacticMatches, 1 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 408 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=724occurred in iteration=6, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 1923 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 17.6s InterpolantComputationTime, 1716 NumberOfCodeBlocks, 1716 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1790 ConstructedInterpolants, 0 QuantifiedInterpolants, 8790 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1103 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 2684/2736 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 00:45:48,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/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 e82610752a88d395729d794c88c73268443026b48dc2e1bfb9e59d87e1051314 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:45:51,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:45:51,488 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:45:51,497 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:45:51,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:45:51,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:45:51,573 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:45:51,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:45:51,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:45:51,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:45:51,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:45:51,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:45:51,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:45:51,574 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:45:51,575 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:45:51,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:45:51,575 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:45:51,575 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:45:51,575 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:45:51,575 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:45:51,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:45:51,576 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:45:51,580 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:45:51,580 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:45:51,580 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:45:51,580 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:45:51,580 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:45:51,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:45:51,581 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:45:51,581 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:45:51,581 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:45:51,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:51,581 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:45:51,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:51,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:51,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:45:51,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:45:51,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:45:51,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:45:51,586 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:51,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:45:51,586 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:45:51,586 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:45:51,586 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:45:51,587 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:45:51,587 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:45:51,587 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:45:51,587 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:45:51,587 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:45:51,587 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:45:51,587 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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/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 -> e82610752a88d395729d794c88c73268443026b48dc2e1bfb9e59d87e1051314 [2024-11-24 00:45:52,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:45:52,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:45:52,034 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:45:52,036 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:45:52,039 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:45:52,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i [2024-11-24 00:45:55,567 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data/97a8ed144/4a26b1270caa4f839d14ee96e3430fbb/FLAGdaa68c6e3 [2024-11-24 00:45:55,892 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:45:55,892 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i [2024-11-24 00:45:55,925 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data/97a8ed144/4a26b1270caa4f839d14ee96e3430fbb/FLAGdaa68c6e3 [2024-11-24 00:45:55,995 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/data/97a8ed144/4a26b1270caa4f839d14ee96e3430fbb [2024-11-24 00:45:56,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:45:56,004 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:45:56,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:56,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:45:56,013 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:45:56,014 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:55" (1/1) ... [2024-11-24 00:45:56,017 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bab74fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56, skipping insertion in model container [2024-11-24 00:45:56,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:45:55" (1/1) ... [2024-11-24 00:45:56,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:45:56,258 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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i[916,929] [2024-11-24 00:45:56,353 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:56,380 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:45:56,396 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_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-22.i[916,929] [2024-11-24 00:45:56,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:45:56,496 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:45:56,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56 WrapperNode [2024-11-24 00:45:56,498 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:45:56,499 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:56,499 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:45:56,500 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:45:56,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,538 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,602 INFO L138 Inliner]: procedures = 37, calls = 117, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 392 [2024-11-24 00:45:56,602 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:45:56,603 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:45:56,603 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:45:56,603 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:45:56,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,662 INFO L175 MemorySlicer]: Split 97 memory accesses to 2 slices as follows [2, 95]. 98 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 25 writes are split as follows [0, 25]. [2024-11-24 00:45:56,663 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,663 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,686 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,722 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:45:56,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:45:56,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:45:56,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:45:56,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (1/1) ... [2024-11-24 00:45:56,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:45:56,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:45:56,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:45:56,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:45:56,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:45:56,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-24 00:45:56,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-24 00:45:56,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:45:56,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-24 00:45:56,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-24 00:45:56,827 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-24 00:45:56,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-24 00:45:56,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-24 00:45:56,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-24 00:45:56,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-24 00:45:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-24 00:45:56,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-24 00:45:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-24 00:45:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-24 00:45:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-24 00:45:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-24 00:45:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-24 00:45:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-24 00:45:56,830 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 00:45:56,831 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 00:45:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-24 00:45:56,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-24 00:45:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:45:56,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:45:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-24 00:45:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-24 00:45:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-24 00:45:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-24 00:45:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-24 00:45:56,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-24 00:45:57,035 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:45:57,038 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:46:00,929 INFO L? ?]: Removed 103 outVars from TransFormulas that were not future-live. [2024-11-24 00:46:00,929 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:46:00,943 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:46:00,944 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 00:46:00,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:46:00 BoogieIcfgContainer [2024-11-24 00:46:00,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:46:00,947 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:46:00,947 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:46:00,954 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:46:00,954 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:45:55" (1/3) ... [2024-11-24 00:46:00,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6e8927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:46:00, skipping insertion in model container [2024-11-24 00:46:00,955 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:45:56" (2/3) ... [2024-11-24 00:46:00,955 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b6e8927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:46:00, skipping insertion in model container [2024-11-24 00:46:00,956 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:46:00" (3/3) ... [2024-11-24 00:46:00,957 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-22.i [2024-11-24 00:46:00,977 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:46:00,979 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-22.i that has 2 procedures, 99 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 00:46:01,060 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:46:01,074 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;@41794907, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:46:01,075 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 00:46:01,080 INFO L276 IsEmpty]: Start isEmpty. Operand has 99 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 88 states have internal predecessors, (126), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:46:01,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-24 00:46:01,093 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:01,094 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:01,094 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:01,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1037497833, now seen corresponding path program 1 times [2024-11-24 00:46:01,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:01,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1989937617] [2024-11-24 00:46:01,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:01,125 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:46:01,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:01,130 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:01,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:01,778 INFO L256 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:46:01,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:01,848 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-24 00:46:01,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:01,850 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:01,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1989937617] [2024-11-24 00:46:01,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1989937617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:01,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:01,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:46:01,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261575434] [2024-11-24 00:46:01,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:01,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:46:01,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:01,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:46:01,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:46:01,896 INFO L87 Difference]: Start difference. First operand has 99 states, 87 states have (on average 1.4482758620689655) internal successors, (126), 88 states have internal predecessors, (126), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:46:01,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:01,928 INFO L93 Difference]: Finished difference Result 188 states and 286 transitions. [2024-11-24 00:46:01,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:46:01,931 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2024-11-24 00:46:01,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:01,938 INFO L225 Difference]: With dead ends: 188 [2024-11-24 00:46:01,938 INFO L226 Difference]: Without dead ends: 92 [2024-11-24 00:46:01,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 88 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 00:46:01,947 INFO L435 NwaCegarLoop]: 129 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, 129 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 00:46:01,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:46:01,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-24 00:46:02,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-24 00:46:02,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 81 states have (on average 1.3703703703703705) internal successors, (111), 81 states have internal predecessors, (111), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:46:02,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 129 transitions. [2024-11-24 00:46:02,020 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 129 transitions. Word has length 89 [2024-11-24 00:46:02,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:02,022 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 129 transitions. [2024-11-24 00:46:02,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:46:02,022 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 129 transitions. [2024-11-24 00:46:02,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 00:46:02,028 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:02,029 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:02,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:02,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:02,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:02,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:02,231 INFO L85 PathProgramCache]: Analyzing trace with hash -8583379, now seen corresponding path program 1 times [2024-11-24 00:46:02,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:02,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1221405740] [2024-11-24 00:46:02,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:02,232 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 00:46:02,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:02,237 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:02,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:02,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:46:02,824 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:02,910 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-24 00:46:02,915 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:02,915 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:02,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1221405740] [2024-11-24 00:46:02,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1221405740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:02,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:02,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 00:46:02,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950617261] [2024-11-24 00:46:02,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:02,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:46:02,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:02,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:46:02,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:46:02,923 INFO L87 Difference]: Start difference. First operand 92 states and 129 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:46:03,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:03,037 INFO L93 Difference]: Finished difference Result 183 states and 258 transitions. [2024-11-24 00:46:03,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:46:03,038 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), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2024-11-24 00:46:03,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:03,040 INFO L225 Difference]: With dead ends: 183 [2024-11-24 00:46:03,043 INFO L226 Difference]: Without dead ends: 94 [2024-11-24 00:46:03,044 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 89 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 00:46:03,045 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:03,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 370 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 00:46:03,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-24 00:46:03,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-24 00:46:03,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 83 states have (on average 1.3614457831325302) internal successors, (113), 83 states have internal predecessors, (113), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-24 00:46:03,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 131 transitions. [2024-11-24 00:46:03,061 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 131 transitions. Word has length 92 [2024-11-24 00:46:03,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:03,063 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 131 transitions. [2024-11-24 00:46:03,063 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), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-24 00:46:03,063 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 131 transitions. [2024-11-24 00:46:03,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 00:46:03,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:03,067 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:03,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 00:46:03,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:03,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:03,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:03,273 INFO L85 PathProgramCache]: Analyzing trace with hash -902069717, now seen corresponding path program 1 times [2024-11-24 00:46:03,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:03,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1690015959] [2024-11-24 00:46:03,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:03,274 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 00:46:03,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:03,279 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:03,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:03,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:03,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-24 00:46:03,933 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:03,993 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 59 treesize of output 58 [2024-11-24 00:46:04,181 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 91 treesize of output 79 [2024-11-24 00:46:04,571 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 16 treesize of output 12 [2024-11-24 00:46:04,644 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 00:46:04,871 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:46:04,872 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 35 [2024-11-24 00:46:04,943 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:46:04,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 35 [2024-11-24 00:46:05,045 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:46:05,046 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 81 treesize of output 51 [2024-11-24 00:46:05,170 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:46:05,171 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:05,171 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:05,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1690015959] [2024-11-24 00:46:05,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1690015959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:05,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:05,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:46:05,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509816923] [2024-11-24 00:46:05,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:05,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:46:05,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:05,177 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:46:05,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:46:05,178 INFO L87 Difference]: Start difference. First operand 94 states and 131 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:08,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:46:15,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:46:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:17,168 INFO L93 Difference]: Finished difference Result 552 states and 771 transitions. [2024-11-24 00:46:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 00:46:17,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 92 [2024-11-24 00:46:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:17,174 INFO L225 Difference]: With dead ends: 552 [2024-11-24 00:46:17,175 INFO L226 Difference]: Without dead ends: 461 [2024-11-24 00:46:17,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:46:17,177 INFO L435 NwaCegarLoop]: 190 mSDtfsCounter, 552 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 552 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:17,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [552 Valid, 1000 Invalid, 713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2024-11-24 00:46:17,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-24 00:46:17,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 313. [2024-11-24 00:46:17,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 272 states have (on average 1.3602941176470589) internal successors, (370), 272 states have internal predecessors, (370), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 00:46:17,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 442 transitions. [2024-11-24 00:46:17,241 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 442 transitions. Word has length 92 [2024-11-24 00:46:17,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:17,241 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 442 transitions. [2024-11-24 00:46:17,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 7 states have internal predecessors, (50), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:17,242 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 442 transitions. [2024-11-24 00:46:17,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:46:17,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:17,251 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:17,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:17,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:17,452 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:17,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:17,453 INFO L85 PathProgramCache]: Analyzing trace with hash 278484247, now seen corresponding path program 1 times [2024-11-24 00:46:17,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:17,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019713887] [2024-11-24 00:46:17,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:17,454 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 00:46:17,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:17,459 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:17,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:18,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:46:18,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:18,043 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 21 treesize of output 9 [2024-11-24 00:46:18,099 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:46:18,099 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:18,099 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:18,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019713887] [2024-11-24 00:46:18,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019713887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:18,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:18,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:46:18,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057661932] [2024-11-24 00:46:18,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:18,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:18,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:18,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:18,102 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:18,102 INFO L87 Difference]: Start difference. First operand 313 states and 442 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:18,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:18,156 INFO L93 Difference]: Finished difference Result 493 states and 695 transitions. [2024-11-24 00:46:18,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:18,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 93 [2024-11-24 00:46:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:18,159 INFO L225 Difference]: With dead ends: 493 [2024-11-24 00:46:18,159 INFO L226 Difference]: Without dead ends: 226 [2024-11-24 00:46:18,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:18,176 INFO L435 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:18,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 247 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:46:18,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-24 00:46:18,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2024-11-24 00:46:18,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 193 states have (on average 1.3367875647668395) internal successors, (258), 193 states have internal predecessors, (258), 27 states have call successors, (27), 3 states have call predecessors, (27), 3 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-24 00:46:18,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 312 transitions. [2024-11-24 00:46:18,226 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 312 transitions. Word has length 93 [2024-11-24 00:46:18,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:18,228 INFO L471 AbstractCegarLoop]: Abstraction has 224 states and 312 transitions. [2024-11-24 00:46:18,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:18,229 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 312 transitions. [2024-11-24 00:46:18,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 00:46:18,233 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:18,234 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:18,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:18,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:18,435 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:18,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:18,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1801465933, now seen corresponding path program 1 times [2024-11-24 00:46:18,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:18,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [252555828] [2024-11-24 00:46:18,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:18,440 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 00:46:18,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:18,444 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:18,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:18,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:18,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 00:46:18,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:18,958 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:46:18,958 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:18,958 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:18,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [252555828] [2024-11-24 00:46:18,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [252555828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:18,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:18,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:46:18,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330809231] [2024-11-24 00:46:18,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:18,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:18,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:18,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:18,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:18,963 INFO L87 Difference]: Start difference. First operand 224 states and 312 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:19,303 INFO L93 Difference]: Finished difference Result 415 states and 577 transitions. [2024-11-24 00:46:19,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:19,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 93 [2024-11-24 00:46:19,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:19,307 INFO L225 Difference]: With dead ends: 415 [2024-11-24 00:46:19,307 INFO L226 Difference]: Without dead ends: 237 [2024-11-24 00:46:19,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:19,309 INFO L435 NwaCegarLoop]: 123 mSDtfsCounter, 17 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:19,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 239 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 00:46:19,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-24 00:46:19,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 152. [2024-11-24 00:46:19,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 131 states have (on average 1.3206106870229009) internal successors, (173), 131 states have internal predecessors, (173), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:46:19,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 209 transitions. [2024-11-24 00:46:19,324 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 209 transitions. Word has length 93 [2024-11-24 00:46:19,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:19,325 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 209 transitions. [2024-11-24 00:46:19,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:19,325 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 209 transitions. [2024-11-24 00:46:19,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:46:19,327 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:19,327 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:19,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2024-11-24 00:46:19,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:19,531 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:19,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:19,532 INFO L85 PathProgramCache]: Analyzing trace with hash -498818970, now seen corresponding path program 1 times [2024-11-24 00:46:19,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:19,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741059496] [2024-11-24 00:46:19,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:19,533 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 00:46:19,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:19,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:19,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:20,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:20,323 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-24 00:46:20,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:20,347 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 59 treesize of output 58 [2024-11-24 00:46:20,519 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 91 treesize of output 79 [2024-11-24 00:46:20,869 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 00:46:20,962 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 14 [2024-11-24 00:46:21,056 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 00:46:21,090 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 00:46:21,185 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 51 treesize of output 33 [2024-11-24 00:46:21,343 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:46:21,343 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:21,343 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:21,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741059496] [2024-11-24 00:46:21,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741059496] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:21,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:21,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-24 00:46:21,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230142325] [2024-11-24 00:46:21,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:21,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 00:46:21,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:21,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 00:46:21,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-24 00:46:21,346 INFO L87 Difference]: Start difference. First operand 152 states and 209 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:24,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:46:26,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:46:27,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:27,359 INFO L93 Difference]: Finished difference Result 324 states and 442 transitions. [2024-11-24 00:46:27,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 00:46:27,360 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 94 [2024-11-24 00:46:27,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:27,362 INFO L225 Difference]: With dead ends: 324 [2024-11-24 00:46:27,362 INFO L226 Difference]: Without dead ends: 234 [2024-11-24 00:46:27,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-24 00:46:27,364 INFO L435 NwaCegarLoop]: 89 mSDtfsCounter, 177 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:27,364 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 580 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-24 00:46:27,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-24 00:46:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 160. [2024-11-24 00:46:27,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 139 states have (on average 1.3237410071942446) internal successors, (184), 139 states have internal predecessors, (184), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:46:27,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 220 transitions. [2024-11-24 00:46:27,384 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 220 transitions. Word has length 94 [2024-11-24 00:46:27,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:27,385 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 220 transitions. [2024-11-24 00:46:27,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:27,387 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 220 transitions. [2024-11-24 00:46:27,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-24 00:46:27,389 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:27,389 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:27,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:27,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:27,590 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:27,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:27,590 INFO L85 PathProgramCache]: Analyzing trace with hash 393840305, now seen corresponding path program 1 times [2024-11-24 00:46:27,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:27,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [918508361] [2024-11-24 00:46:27,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:27,591 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 00:46:27,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:27,593 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:27,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:28,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:46:28,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:28,059 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 21 treesize of output 9 [2024-11-24 00:46:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:46:28,094 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:28,094 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:28,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [918508361] [2024-11-24 00:46:28,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [918508361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:28,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:28,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:46:28,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362869199] [2024-11-24 00:46:28,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:28,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:46:28,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:28,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:46:28,097 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:28,097 INFO L87 Difference]: Start difference. First operand 160 states and 220 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:28,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:28,138 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2024-11-24 00:46:28,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:46:28,139 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 94 [2024-11-24 00:46:28,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:28,142 INFO L225 Difference]: With dead ends: 252 [2024-11-24 00:46:28,142 INFO L226 Difference]: Without dead ends: 154 [2024-11-24 00:46:28,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:46:28,144 INFO L435 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:28,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 237 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:46:28,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2024-11-24 00:46:28,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2024-11-24 00:46:28,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 133 states have (on average 1.300751879699248) internal successors, (173), 133 states have internal predecessors, (173), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:46:28,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 209 transitions. [2024-11-24 00:46:28,164 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 209 transitions. Word has length 94 [2024-11-24 00:46:28,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:28,164 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 209 transitions. [2024-11-24 00:46:28,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:28,165 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 209 transitions. [2024-11-24 00:46:28,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:46:28,167 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:28,168 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:28,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:28,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:28,368 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:28,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:28,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1228323282, now seen corresponding path program 1 times [2024-11-24 00:46:28,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:28,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771987363] [2024-11-24 00:46:28,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:28,369 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 00:46:28,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:28,372 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:28,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:28,926 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 00:46:28,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:28,942 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 24 treesize of output 9 [2024-11-24 00:46:28,984 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 9 treesize of output 3 [2024-11-24 00:46:29,082 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 00:46:29,368 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 00:46:29,482 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 00:46:29,609 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 00:46:29,741 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 00:46:29,942 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 22 treesize of output 10 [2024-11-24 00:46:30,000 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 60 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-24 00:46:30,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:46:30,554 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 15 [2024-11-24 00:46:30,644 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:30,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771987363] [2024-11-24 00:46:30,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771987363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:46:30,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [736685713] [2024-11-24 00:46:30,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:30,644 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:46:30,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:46:30,652 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:46:30,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2024-11-24 00:46:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:32,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-24 00:46:32,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:32,300 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2024-11-24 00:46:32,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:46:32,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:46:32,613 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 00:46:33,256 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 00:46:33,556 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 00:46:33,778 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 00:46:34,086 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 00:46:34,398 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 26 treesize of output 14 [2024-11-24 00:46:34,440 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 62 proven. 18 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-24 00:46:34,441 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:46:34,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [736685713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:46:34,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:46:34,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2024-11-24 00:46:34,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580446461] [2024-11-24 00:46:34,790 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:46:34,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-24 00:46:34,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:34,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-24 00:46:34,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2024-11-24 00:46:34,792 INFO L87 Difference]: Start difference. First operand 154 states and 209 transitions. Second operand has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 00:46:41,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:46:45,714 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:46:47,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:46:47,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:47,848 INFO L93 Difference]: Finished difference Result 298 states and 397 transitions. [2024-11-24 00:46:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-24 00:46:47,849 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 95 [2024-11-24 00:46:47,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:47,851 INFO L225 Difference]: With dead ends: 298 [2024-11-24 00:46:47,851 INFO L226 Difference]: Without dead ends: 210 [2024-11-24 00:46:47,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 324 SyntacticMatches, 4 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 00:46:47,853 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 163 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:47,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 599 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 11.6s Time] [2024-11-24 00:46:47,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-24 00:46:47,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 164. [2024-11-24 00:46:47,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.2836879432624113) internal successors, (181), 141 states have internal predecessors, (181), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:46:47,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 217 transitions. [2024-11-24 00:46:47,872 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 217 transitions. Word has length 95 [2024-11-24 00:46:47,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:47,873 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 217 transitions. [2024-11-24 00:46:47,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 6.714285714285714) internal successors, (94), 14 states have internal predecessors, (94), 6 states have call successors, (18), 5 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 00:46:47,873 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 217 transitions. [2024-11-24 00:46:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-24 00:46:47,875 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:47,875 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:47,886 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2024-11-24 00:46:48,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:48,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:48,276 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:48,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:48,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1362336788, now seen corresponding path program 1 times [2024-11-24 00:46:48,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:48,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [9937318] [2024-11-24 00:46:48,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:48,277 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 00:46:48,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:48,280 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:48,284 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:48,964 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-24 00:46:48,968 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:48,978 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 8 treesize of output 1 [2024-11-24 00:46:48,985 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 23 treesize of output 23 [2024-11-24 00:46:49,053 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:46:49,053 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 39 treesize of output 26 [2024-11-24 00:46:49,079 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:46:49,080 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 39 treesize of output 26 [2024-11-24 00:46:49,112 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:46:49,112 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 72 treesize of output 42 [2024-11-24 00:46:49,151 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:46:49,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:49,151 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:49,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [9937318] [2024-11-24 00:46:49,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [9937318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:49,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:49,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:46:49,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273560322] [2024-11-24 00:46:49,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:49,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:46:49,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:49,154 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:46:49,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:46:49,155 INFO L87 Difference]: Start difference. First operand 164 states and 217 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:52,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:46:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:52,541 INFO L93 Difference]: Finished difference Result 253 states and 338 transitions. [2024-11-24 00:46:52,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:46:52,542 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 95 [2024-11-24 00:46:52,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:52,543 INFO L225 Difference]: With dead ends: 253 [2024-11-24 00:46:52,543 INFO L226 Difference]: Without dead ends: 165 [2024-11-24 00:46:52,544 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 00:46:52,544 INFO L435 NwaCegarLoop]: 132 mSDtfsCounter, 98 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:52,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 430 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-24 00:46:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-11-24 00:46:52,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 164. [2024-11-24 00:46:52,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 141 states have (on average 1.2765957446808511) internal successors, (180), 141 states have internal predecessors, (180), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:46:52,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 216 transitions. [2024-11-24 00:46:52,564 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 216 transitions. Word has length 95 [2024-11-24 00:46:52,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:52,564 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 216 transitions. [2024-11-24 00:46:52,564 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, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:52,565 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 216 transitions. [2024-11-24 00:46:52,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:46:52,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:52,566 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:52,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2024-11-24 00:46:52,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:52,767 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:52,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:52,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1584848223, now seen corresponding path program 1 times [2024-11-24 00:46:52,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:52,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195882065] [2024-11-24 00:46:52,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:52,768 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 00:46:52,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:52,770 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:52,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:46:53,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:46:53,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:46:53,270 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-24 00:46:53,270 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:46:53,270 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:46:53,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195882065] [2024-11-24 00:46:53,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195882065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:46:53,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:46:53,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 00:46:53,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635560251] [2024-11-24 00:46:53,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:46:53,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:46:53,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:46:53,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:46:53,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 00:46:53,272 INFO L87 Difference]: Start difference. First operand 164 states and 216 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:54,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:46:54,180 INFO L93 Difference]: Finished difference Result 255 states and 339 transitions. [2024-11-24 00:46:54,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 00:46:54,181 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 96 [2024-11-24 00:46:54,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:46:54,184 INFO L225 Difference]: With dead ends: 255 [2024-11-24 00:46:54,187 INFO L226 Difference]: Without dead ends: 167 [2024-11-24 00:46:54,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 92 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 00:46:54,188 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 00:46:54,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 452 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 00:46:54,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-24 00:46:54,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-24 00:46:54,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 144 states have (on average 1.2708333333333333) internal successors, (183), 144 states have internal predecessors, (183), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:46:54,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 219 transitions. [2024-11-24 00:46:54,224 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 219 transitions. Word has length 96 [2024-11-24 00:46:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:46:54,226 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 219 transitions. [2024-11-24 00:46:54,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-24 00:46:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 219 transitions. [2024-11-24 00:46:54,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:46:54,228 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:46:54,228 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:46:54,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:54,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:54,428 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:46:54,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:46:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1900772447, now seen corresponding path program 1 times [2024-11-24 00:46:54,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:46:54,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1771643829] [2024-11-24 00:46:54,430 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:46:54,430 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 00:46:54,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:46:54,436 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:46:54,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:48:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:29,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:48:29,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:29,919 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-24 00:48:29,954 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 9 treesize of output 3 [2024-11-24 00:48:30,216 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 00:48:30,512 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 24 treesize of output 23 [2024-11-24 00:48:30,618 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:30,618 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 35 treesize of output 26 [2024-11-24 00:48:30,779 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:30,779 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 29 treesize of output 11 [2024-11-24 00:48:30,831 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-24 00:48:30,831 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:31,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 39 treesize of output 27 [2024-11-24 00:48:31,907 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:48:31,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1771643829] [2024-11-24 00:48:31,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1771643829] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:31,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [193566050] [2024-11-24 00:48:31,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:31,907 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-24 00:48:31,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 [2024-11-24 00:48:31,909 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-24 00:48:31,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2024-11-24 00:48:33,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:48:33,971 INFO L256 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-24 00:48:33,975 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:48:33,983 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 17 [2024-11-24 00:48:34,100 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:34,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 9 [2024-11-24 00:48:34,541 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 15 treesize of output 1 [2024-11-24 00:48:34,966 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 20 treesize of output 19 [2024-11-24 00:48:35,105 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:35,105 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 31 treesize of output 22 [2024-11-24 00:48:35,285 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:48:35,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 11 [2024-11-24 00:48:35,301 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 50 proven. 3 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-24 00:48:35,301 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:48:36,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [193566050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:48:36,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:48:36,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2024-11-24 00:48:36,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10547767] [2024-11-24 00:48:36,039 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:48:36,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 00:48:36,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:48:36,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 00:48:36,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=511, Unknown=0, NotChecked=0, Total=650 [2024-11-24 00:48:36,041 INFO L87 Difference]: Start difference. First operand 167 states and 219 transitions. Second operand has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 00:48:40,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:48:44,416 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:48:45,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-24 00:48:45,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:48:45,621 INFO L93 Difference]: Finished difference Result 326 states and 424 transitions. [2024-11-24 00:48:45,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-24 00:48:45,622 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 96 [2024-11-24 00:48:45,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:48:45,623 INFO L225 Difference]: With dead ends: 326 [2024-11-24 00:48:45,624 INFO L226 Difference]: Without dead ends: 224 [2024-11-24 00:48:45,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 248 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=392, Invalid=1248, Unknown=0, NotChecked=0, Total=1640 [2024-11-24 00:48:45,625 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 227 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 581 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-24 00:48:45,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 581 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-24 00:48:45,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-24 00:48:45,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 181. [2024-11-24 00:48:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 157 states have (on average 1.2547770700636942) internal successors, (197), 157 states have internal predecessors, (197), 18 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 00:48:45,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 233 transitions. [2024-11-24 00:48:45,647 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 233 transitions. Word has length 96 [2024-11-24 00:48:45,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:48:45,648 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 233 transitions. [2024-11-24 00:48:45,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.882352941176471) internal successors, (100), 18 states have internal predecessors, (100), 6 states have call successors, (18), 4 states have call predecessors, (18), 6 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 00:48:45,648 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 233 transitions. [2024-11-24 00:48:45,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-24 00:48:45,649 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:48:45,649 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:48:45,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2024-11-24 00:48:45,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:48:46,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:48:46,050 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:48:46,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:48:46,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1681917729, now seen corresponding path program 1 times [2024-11-24 00:48:46,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:48:46,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791535131] [2024-11-24 00:48:46,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:48:46,051 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 00:48:46,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:48:46,055 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:48:46,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:50:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:50:22,916 INFO L256 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-24 00:50:22,921 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:50:22,930 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 24 treesize of output 9 [2024-11-24 00:50:22,958 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 9 treesize of output 3 [2024-11-24 00:50:23,027 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 00:50:23,253 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 00:50:23,357 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 00:50:23,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2024-11-24 00:50:23,559 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 00:50:23,751 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 00:50:23,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:50:23,876 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 28 [2024-11-24 00:50:23,928 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 00:50:23,928 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 14 [2024-11-24 00:50:24,003 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 60 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-24 00:50:24,003 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:50:24,729 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 29 treesize of output 17 [2024-11-24 00:50:24,745 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-24 00:50:24,745 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:50:24,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791535131] [2024-11-24 00:50:24,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791535131] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:50:24,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 00:50:24,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 15 [2024-11-24 00:50:24,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055260429] [2024-11-24 00:50:24,745 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 00:50:24,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-24 00:50:24,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:50:24,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-24 00:50:24,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-11-24 00:50:24,747 INFO L87 Difference]: Start difference. First operand 181 states and 233 transitions. Second operand has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 15 states have internal predecessors, (96), 6 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 00:50:31,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:50:32,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 00:50:32,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:50:32,525 INFO L93 Difference]: Finished difference Result 341 states and 437 transitions. [2024-11-24 00:50:32,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-24 00:50:32,526 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 15 states have internal predecessors, (96), 6 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) Word has length 96 [2024-11-24 00:50:32,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:50:32,527 INFO L225 Difference]: With dead ends: 341 [2024-11-24 00:50:32,527 INFO L226 Difference]: Without dead ends: 235 [2024-11-24 00:50:32,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2024-11-24 00:50:32,528 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 393 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2024-11-24 00:50:32,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 374 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2024-11-24 00:50:32,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-24 00:50:32,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 228. [2024-11-24 00:50:32,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 200 states have (on average 1.235) internal successors, (247), 201 states have internal predecessors, (247), 20 states have call successors, (20), 7 states have call predecessors, (20), 7 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-24 00:50:32,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 287 transitions. [2024-11-24 00:50:32,559 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 287 transitions. Word has length 96 [2024-11-24 00:50:32,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:50:32,560 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 287 transitions. [2024-11-24 00:50:32,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.384615384615385) internal successors, (96), 15 states have internal predecessors, (96), 6 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (18), 4 states have call predecessors, (18), 6 states have call successors, (18) [2024-11-24 00:50:32,560 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 287 transitions. [2024-11-24 00:50:32,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-24 00:50:32,561 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:50:32,561 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:50:32,588 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2024-11-24 00:50:32,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:50:32,762 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:50:32,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:50:32,762 INFO L85 PathProgramCache]: Analyzing trace with hash 1522891142, now seen corresponding path program 1 times [2024-11-24 00:50:32,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:50:32,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [537133790] [2024-11-24 00:50:32,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:50:32,763 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 00:50:32,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:50:32,765 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 00:50:32,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4aa8d02b-3e3c-441b-97d6-20bb6f769d0b/bin/uautomizer-verify-LYvppIcaGC/mathsat -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