./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd --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 b01652b30ec09a692ad6378ed531eb12202ad1b62f1f35df71071640dd6a83a1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:29:23,738 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:29:23,828 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:29:23,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:29:23,838 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:29:23,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:29:23,871 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:29:23,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:29:23,872 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:29:23,872 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:29:23,873 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:29:23,873 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:29:23,874 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:29:23,874 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:29:23,874 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:29:23,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:29:23,876 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:29:23,876 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:29:23,876 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:29:23,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:29:23,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:29:23,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:29:23,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:29:23,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:29:23,877 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:29:23,877 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:29:23,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:29:23,877 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:29:23,877 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:29:23,877 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:29:23,877 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:29:23,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:29:23,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:29:23,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:29:23,878 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_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd 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 -> b01652b30ec09a692ad6378ed531eb12202ad1b62f1f35df71071640dd6a83a1 [2024-11-13 13:29:24,214 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:29:24,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:29:24,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:29:24,227 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:29:24,227 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:29:24,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i Unable to find full path for "g++" [2024-11-13 13:29:26,160 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:29:26,439 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:29:26,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i [2024-11-13 13:29:26,453 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/data/f23c97cf1/1295299dd80d4a2c8978cfe88a34cf33/FLAGc5c6673e6 [2024-11-13 13:29:26,732 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/data/f23c97cf1/1295299dd80d4a2c8978cfe88a34cf33 [2024-11-13 13:29:26,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:29:26,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:29:26,740 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:29:26,741 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:29:26,745 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:29:26,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:26" (1/1) ... [2024-11-13 13:29:26,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c9d763b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:26, skipping insertion in model container [2024-11-13 13:29:26,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:26" (1/1) ... [2024-11-13 13:29:26,773 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:29:26,915 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_1330295b-0a90-48b1-b18e-b186a97de183/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i[916,929] [2024-11-13 13:29:26,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:29:26,990 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:29:27,001 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_1330295b-0a90-48b1-b18e-b186a97de183/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i[916,929] [2024-11-13 13:29:27,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:29:27,093 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:29:27,093 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27 WrapperNode [2024-11-13 13:29:27,094 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:29:27,095 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:29:27,095 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:29:27,095 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:29:27,101 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,116 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,159 INFO L138 Inliner]: procedures = 30, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 490 [2024-11-13 13:29:27,163 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:29:27,164 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:29:27,164 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:29:27,164 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:29:27,175 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,185 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,198 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-13 13:29:27,201 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,201 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,237 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,245 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,252 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:29:27,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:29:27,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:29:27,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:29:27,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (1/1) ... [2024-11-13 13:29:27,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:29:27,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:29:27,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:29:27,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:29:27,328 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:29:27,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-13 13:29:27,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-13 13:29:27,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-13 13:29:27,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 13:29:27,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-13 13:29:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 13:29:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:29:27,330 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:29:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 13:29:27,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:29:27,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:29:27,474 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:29:27,476 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:29:28,250 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-13 13:29:28,251 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:29:28,266 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:29:28,268 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:29:28,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:28 BoogieIcfgContainer [2024-11-13 13:29:28,269 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:29:28,271 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:29:28,272 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:29:28,276 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:29:28,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:29:26" (1/3) ... [2024-11-13 13:29:28,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee97ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:29:28, skipping insertion in model container [2024-11-13 13:29:28,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:27" (2/3) ... [2024-11-13 13:29:28,277 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee97ae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:29:28, skipping insertion in model container [2024-11-13 13:29:28,277 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:28" (3/3) ... [2024-11-13 13:29:28,278 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-10.i [2024-11-13 13:29:28,293 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:29:28,294 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-10.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:29:28,347 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:29:28,365 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;@40253c52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:29:28,365 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:29:28,372 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:28,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:28,388 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:28,389 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:28,390 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:28,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:28,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1455223495, now seen corresponding path program 1 times [2024-11-13 13:29:28,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:28,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241174098] [2024-11-13 13:29:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:28,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:29:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:29:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:29:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:29:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:29:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:29:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 13:29:28,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:29:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:29:28,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:29:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:29:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:29:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:29:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:29:28,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:29:28,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:29:28,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:29:28,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:29:28,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 13:29:28,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:29:28,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:28,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241174098] [2024-11-13 13:29:28,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241174098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:28,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:28,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:29:28,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771004508] [2024-11-13 13:29:28,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:28,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:29:28,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:28,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:29:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:29:28,973 INFO L87 Difference]: Start difference. First operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:29,001 INFO L93 Difference]: Finished difference Result 215 states and 335 transitions. [2024-11-13 13:29:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:29:29,003 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-13 13:29:29,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:29,011 INFO L225 Difference]: With dead ends: 215 [2024-11-13 13:29:29,011 INFO L226 Difference]: Without dead ends: 107 [2024-11-13 13:29:29,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:29:29,017 INFO L432 NwaCegarLoop]: 152 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, 152 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 [2024-11-13 13:29:29,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:29:29,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-13 13:29:29,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-13 13:29:29,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 86 states have internal predecessors, (114), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:29,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 152 transitions. [2024-11-13 13:29:29,057 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 152 transitions. Word has length 152 [2024-11-13 13:29:29,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:29,058 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 152 transitions. [2024-11-13 13:29:29,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:29,058 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 152 transitions. [2024-11-13 13:29:29,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:29,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:29,061 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:29,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:29:29,062 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:29,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:29,062 INFO L85 PathProgramCache]: Analyzing trace with hash 67560351, now seen corresponding path program 1 times [2024-11-13 13:29:29,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:29,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854820805] [2024-11-13 13:29:29,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:29,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:29:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:29:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,846 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:29:29,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:29:29,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:29:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:29:29,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 13:29:29,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:29:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:29:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:29:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:29:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:29:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:29:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:29:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:29:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:29:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:29:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:29:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 13:29:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,928 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:29:29,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:29,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854820805] [2024-11-13 13:29:29,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854820805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:29,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:29,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:29:29,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345485075] [2024-11-13 13:29:29,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:29,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:29:29,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:29,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:29:29,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:29,934 INFO L87 Difference]: Start difference. First operand 107 states and 152 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:30,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:30,012 INFO L93 Difference]: Finished difference Result 214 states and 305 transitions. [2024-11-13 13:29:30,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:29:30,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-13 13:29:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:30,018 INFO L225 Difference]: With dead ends: 214 [2024-11-13 13:29:30,018 INFO L226 Difference]: Without dead ends: 110 [2024-11-13 13:29:30,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:30,020 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:30,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 436 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:29:30,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-11-13 13:29:30,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 109. [2024-11-13 13:29:30,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 88 states have (on average 1.3181818181818181) internal successors, (116), 88 states have internal predecessors, (116), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:30,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 154 transitions. [2024-11-13 13:29:30,046 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 154 transitions. Word has length 152 [2024-11-13 13:29:30,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:30,048 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 154 transitions. [2024-11-13 13:29:30,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:30,048 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 154 transitions. [2024-11-13 13:29:30,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:30,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:30,053 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:30,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:29:30,053 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:30,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:30,055 INFO L85 PathProgramCache]: Analyzing trace with hash 747618721, now seen corresponding path program 1 times [2024-11-13 13:29:30,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:30,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905399104] [2024-11-13 13:29:30,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:30,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:29:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:29:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:29:30,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:29:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:29:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:29:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 13:29:30,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:29:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:29:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:29:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:29:30,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:29:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:29:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:29:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:29:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:29:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:29:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:29:30,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 13:29:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:29:30,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:30,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905399104] [2024-11-13 13:29:30,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905399104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:30,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:30,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:29:30,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539331594] [2024-11-13 13:29:30,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:30,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:29:30,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:30,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:29:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:30,459 INFO L87 Difference]: Start difference. First operand 109 states and 154 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:30,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:30,521 INFO L93 Difference]: Finished difference Result 218 states and 309 transitions. [2024-11-13 13:29:30,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:29:30,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-13 13:29:30,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:30,525 INFO L225 Difference]: With dead ends: 218 [2024-11-13 13:29:30,528 INFO L226 Difference]: Without dead ends: 112 [2024-11-13 13:29:30,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:30,529 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:30,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 437 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:29:30,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-13 13:29:30,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2024-11-13 13:29:30,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 90 states have (on average 1.3111111111111111) internal successors, (118), 90 states have internal predecessors, (118), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:30,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 156 transitions. [2024-11-13 13:29:30,549 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 156 transitions. Word has length 152 [2024-11-13 13:29:30,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:30,550 INFO L471 AbstractCegarLoop]: Abstraction has 111 states and 156 transitions. [2024-11-13 13:29:30,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 156 transitions. [2024-11-13 13:29:30,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:30,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:30,553 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:30,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:29:30,557 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:30,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:30,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1772341213, now seen corresponding path program 1 times [2024-11-13 13:29:30,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:30,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712575254] [2024-11-13 13:29:30,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:30,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:29:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:29:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:29:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:29:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:29:30,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:29:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 13:29:30,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:29:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:29:30,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:29:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:29:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:29:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:29:30,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:29:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:29:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:29:30,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:29:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:29:30,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 13:29:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:30,947 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:29:30,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:30,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712575254] [2024-11-13 13:29:30,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712575254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:30,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:30,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:29:30,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498010337] [2024-11-13 13:29:30,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:30,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:29:30,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:30,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:29:30,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:30,951 INFO L87 Difference]: Start difference. First operand 111 states and 156 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:30,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:30,987 INFO L93 Difference]: Finished difference Result 222 states and 313 transitions. [2024-11-13 13:29:30,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:29:30,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-13 13:29:30,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:30,989 INFO L225 Difference]: With dead ends: 222 [2024-11-13 13:29:30,989 INFO L226 Difference]: Without dead ends: 114 [2024-11-13 13:29:30,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:30,990 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:30,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 439 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:29:30,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-13 13:29:31,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-13 13:29:31,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 92 states have internal predecessors, (120), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:31,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 158 transitions. [2024-11-13 13:29:31,003 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 158 transitions. Word has length 152 [2024-11-13 13:29:31,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:31,004 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 158 transitions. [2024-11-13 13:29:31,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:31,004 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 158 transitions. [2024-11-13 13:29:31,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:31,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:31,006 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:31,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:29:31,007 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:31,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:31,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1770494171, now seen corresponding path program 1 times [2024-11-13 13:29:31,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:31,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981734264] [2024-11-13 13:29:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:31,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:31,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-13 13:29:34,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 13:29:34,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 13:29:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 13:29:34,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-13 13:29:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-13 13:29:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 13:29:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-13 13:29:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-13 13:29:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-13 13:29:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 13:29:34,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-11-13 13:29:34,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-13 13:29:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-13 13:29:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-13 13:29:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-13 13:29:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-13 13:29:34,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-13 13:29:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-13 13:29:34,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,522 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:29:34,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:34,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981734264] [2024-11-13 13:29:34,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981734264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:34,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:34,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:29:34,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983064367] [2024-11-13 13:29:34,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:34,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:29:34,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:34,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:29:34,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:29:34,525 INFO L87 Difference]: Start difference. First operand 113 states and 158 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:35,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:35,249 INFO L93 Difference]: Finished difference Result 225 states and 315 transitions. [2024-11-13 13:29:35,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:29:35,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-13 13:29:35,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:35,253 INFO L225 Difference]: With dead ends: 225 [2024-11-13 13:29:35,253 INFO L226 Difference]: Without dead ends: 115 [2024-11-13 13:29:35,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:29:35,256 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 51 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:35,256 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 357 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 13:29:35,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-13 13:29:35,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 113. [2024-11-13 13:29:35,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 92 states have internal predecessors, (119), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:35,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 157 transitions. [2024-11-13 13:29:35,277 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 157 transitions. Word has length 152 [2024-11-13 13:29:35,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:35,280 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 157 transitions. [2024-11-13 13:29:35,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 5 states have internal predecessors, (60), 2 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 157 transitions. [2024-11-13 13:29:35,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 13:29:35,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:35,283 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:35,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:29:35,283 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:35,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:35,283 INFO L85 PathProgramCache]: Analyzing trace with hash 96753536, now seen corresponding path program 1 times [2024-11-13 13:29:35,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:35,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500956626] [2024-11-13 13:29:35,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:35,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:35,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:29:35,580 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 13:29:35,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 13:29:35,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 13:29:35,845 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 13:29:35,846 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:29:35,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:29:35,852 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-13 13:29:35,948 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:29:35,952 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:29:35 BoogieIcfgContainer [2024-11-13 13:29:35,953 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:29:35,953 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:29:35,954 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:29:35,954 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:29:35,954 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:28" (3/4) ... [2024-11-13 13:29:35,957 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 13:29:35,958 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:29:35,962 INFO L158 Benchmark]: Toolchain (without parser) took 9222.17ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 92.6MB in the beginning and 185.0MB in the end (delta: -92.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2024-11-13 13:29:35,962 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:29:35,962 INFO L158 Benchmark]: CACSL2BoogieTranslator took 354.45ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 74.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:29:35,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.98ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 71.1MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:29:35,963 INFO L158 Benchmark]: Boogie Preprocessor took 95.40ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 67.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:29:35,963 INFO L158 Benchmark]: RCFGBuilder took 1009.55ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 89.0MB in the end (delta: -21.1MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2024-11-13 13:29:35,963 INFO L158 Benchmark]: TraceAbstraction took 7681.37ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 88.4MB in the beginning and 185.1MB in the end (delta: -96.6MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. [2024-11-13 13:29:35,964 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 276.8MB. Free memory was 185.1MB in the beginning and 185.0MB in the end (delta: 23.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:29:35,966 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 354.45ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 74.7MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.98ms. Allocated memory is still 117.4MB. Free memory was 74.7MB in the beginning and 71.1MB in the end (delta: 3.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 95.40ms. Allocated memory is still 117.4MB. Free memory was 71.1MB in the beginning and 67.9MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1009.55ms. Allocated memory is still 117.4MB. Free memory was 67.9MB in the beginning and 89.0MB in the end (delta: -21.1MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * TraceAbstraction took 7681.37ms. Allocated memory was 117.4MB in the beginning and 276.8MB in the end (delta: 159.4MB). Free memory was 88.4MB in the beginning and 185.1MB in the end (delta: -96.6MB). Peak memory consumption was 59.3MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 276.8MB. Free memory was 185.1MB in the beginning and 185.0MB in the end (delta: 23.5kB). 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 someUnaryDOUBLEoperation at line 84, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of someBinaryDOUBLEComparisonOperation at line 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 100, overapproximation of someBinaryDOUBLEComparisonOperation at line 129, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 102, overapproximation of someBinaryDOUBLEComparisonOperation at line 98. Possible FailurePath: [L42] unsigned char isInitial = 0; [L43-L62] struct WrapperStruct00 WrapperStruct00 = { 5, 8, 9.15, 1000000.875, 49.25, -0.8, -10, 58996, 32, 32, 16, 2, 32, 1000000000, -0.5, 2, 0, 0 }; [L63] double last_1_WrapperStruct00_var_1_3 = 9.15; VAL [WrapperStruct00={4:0}, isInitial=0, last_1_WrapperStruct00_var_1_3=183/20] [L133] isInitial = 1 [L134] FCALL initially() [L135] COND TRUE 1 [L136] CALL updateLastVariables() [L126] EXPR WrapperStruct00.var_1_3 [L126] last_1_WrapperStruct00_var_1_3 = WrapperStruct00.var_1_3 [L136] RET updateLastVariables() [L137] CALL updateVariables() [L94] WrapperStruct00.var_1_2 = __VERIFIER_nondet_ulong() [L95] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L95] CALL assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L95] RET assume_abort_if_not(WrapperStruct00.var_1_2 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L96] EXPR WrapperStruct00.var_1_2 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L96] CALL assume_abort_if_not(WrapperStruct00.var_1_2 <= 4294967294) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L96] RET assume_abort_if_not(WrapperStruct00.var_1_2 <= 4294967294) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L97] WrapperStruct00.var_1_6 = __VERIFIER_nondet_double() [L98] EXPR WrapperStruct00.var_1_6 [L98] EXPR WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F [L98] EXPR WrapperStruct00.var_1_6 [L98] EXPR WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L98] EXPR (WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L98] CALL assume_abort_if_not((WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L98] RET assume_abort_if_not((WrapperStruct00.var_1_6 >= 0.0F && WrapperStruct00.var_1_6 <= -1.0e-20F) || (WrapperStruct00.var_1_6 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_6 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L99] WrapperStruct00.var_1_7 = __VERIFIER_nondet_double() [L100] EXPR WrapperStruct00.var_1_7 [L100] EXPR WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F [L100] EXPR WrapperStruct00.var_1_7 [L100] EXPR WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L100] EXPR (WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L100] CALL assume_abort_if_not((WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L100] RET assume_abort_if_not((WrapperStruct00.var_1_7 >= 0.0F && WrapperStruct00.var_1_7 <= -1.0e-20F) || (WrapperStruct00.var_1_7 <= 9223372.036854776000e+12F && WrapperStruct00.var_1_7 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L101] WrapperStruct00.var_1_8 = __VERIFIER_nondet_double() [L102] EXPR WrapperStruct00.var_1_8 [L102] EXPR WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F [L102] EXPR WrapperStruct00.var_1_8 [L102] EXPR WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L102] EXPR (WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F ) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L102] CALL assume_abort_if_not((WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L102] RET assume_abort_if_not((WrapperStruct00.var_1_8 >= -922337.2036854765600e+13F && WrapperStruct00.var_1_8 <= -1.0e-20F) || (WrapperStruct00.var_1_8 <= 9223372.036854765600e+12F && WrapperStruct00.var_1_8 >= 1.0e-20F )) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L103] WrapperStruct00.var_1_10 = __VERIFIER_nondet_ushort() [L104] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L104] CALL assume_abort_if_not(WrapperStruct00.var_1_10 >= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L104] RET assume_abort_if_not(WrapperStruct00.var_1_10 >= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L105] EXPR WrapperStruct00.var_1_10 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L105] CALL assume_abort_if_not(WrapperStruct00.var_1_10 <= 65535) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L105] RET assume_abort_if_not(WrapperStruct00.var_1_10 <= 65535) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L106] WrapperStruct00.var_1_11 = __VERIFIER_nondet_ushort() [L107] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L107] CALL assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L107] RET assume_abort_if_not(WrapperStruct00.var_1_11 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L108] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L108] CALL assume_abort_if_not(WrapperStruct00.var_1_11 <= 32767) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L108] RET assume_abort_if_not(WrapperStruct00.var_1_11 <= 32767) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L109] WrapperStruct00.var_1_12 = __VERIFIER_nondet_char() [L110] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L110] CALL assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L110] RET assume_abort_if_not(WrapperStruct00.var_1_12 >= -1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L111] EXPR WrapperStruct00.var_1_12 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L111] CALL assume_abort_if_not(WrapperStruct00.var_1_12 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L111] RET assume_abort_if_not(WrapperStruct00.var_1_12 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L112] WrapperStruct00.var_1_13 = __VERIFIER_nondet_char() [L113] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L113] CALL assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L113] RET assume_abort_if_not(WrapperStruct00.var_1_13 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L114] EXPR WrapperStruct00.var_1_13 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L114] CALL assume_abort_if_not(WrapperStruct00.var_1_13 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L114] RET assume_abort_if_not(WrapperStruct00.var_1_13 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L115] WrapperStruct00.var_1_14 = __VERIFIER_nondet_char() [L116] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L116] CALL assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L116] RET assume_abort_if_not(WrapperStruct00.var_1_14 >= 0) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L117] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L117] CALL assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L117] RET assume_abort_if_not(WrapperStruct00.var_1_14 <= 126) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L118] WrapperStruct00.var_1_17 = __VERIFIER_nondet_long() [L119] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L119] CALL assume_abort_if_not(WrapperStruct00.var_1_17 >= 536870911) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L119] RET assume_abort_if_not(WrapperStruct00.var_1_17 >= 536870911) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L120] EXPR WrapperStruct00.var_1_17 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L120] CALL assume_abort_if_not(WrapperStruct00.var_1_17 <= 1073741823) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L120] RET assume_abort_if_not(WrapperStruct00.var_1_17 <= 1073741823) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L121] WrapperStruct00.var_1_21 = __VERIFIER_nondet_uchar() [L122] EXPR WrapperStruct00.var_1_21 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L122] CALL assume_abort_if_not(WrapperStruct00.var_1_21 >= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L122] RET assume_abort_if_not(WrapperStruct00.var_1_21 >= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L123] EXPR WrapperStruct00.var_1_21 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L123] CALL assume_abort_if_not(WrapperStruct00.var_1_21 <= 1) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L20] COND FALSE !(!cond) VAL [WrapperStruct00={4:0}, \old(cond)=1, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L123] RET assume_abort_if_not(WrapperStruct00.var_1_21 <= 1) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L137] RET updateVariables() [L138] CALL step() [L67] EXPR WrapperStruct00.var_1_2 [L67] WrapperStruct00.var_1_1 = WrapperStruct00.var_1_2 [L68] EXPR WrapperStruct00.var_1_8 [L68] WrapperStruct00.var_1_18 = WrapperStruct00.var_1_8 [L69] EXPR WrapperStruct00.var_1_12 [L69] WrapperStruct00.var_1_19 = WrapperStruct00.var_1_12 [L70] EXPR WrapperStruct00.var_1_21 [L70] WrapperStruct00.var_1_20 = WrapperStruct00.var_1_21 [L71] EXPR WrapperStruct00.var_1_19 [L71] signed char stepLocal_1 = WrapperStruct00.var_1_19; [L72] EXPR WrapperStruct00.var_1_10 [L72] EXPR WrapperStruct00.var_1_11 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20, stepLocal_1=-1] [L72] COND TRUE (- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= stepLocal_1 [L73] EXPR WrapperStruct00.var_1_12 [L73] EXPR WrapperStruct00.var_1_13 [L73] EXPR WrapperStruct00.var_1_14 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L73] EXPR ((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14) [L73] EXPR WrapperStruct00.var_1_13 [L73] EXPR ((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L73] WrapperStruct00.var_1_9 = (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))) [L77] WrapperStruct00.var_1_20 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L77] COND TRUE WrapperStruct00.var_1_20 [L78] EXPR WrapperStruct00.var_1_12 [L78] EXPR WrapperStruct00.var_1_14 [L78] WrapperStruct00.var_1_15 = (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14) [L82] EXPR WrapperStruct00.var_1_15 [L82] signed long int stepLocal_0 = WrapperStruct00.var_1_15; [L83] EXPR WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20, stepLocal_0=-7] [L83] COND TRUE stepLocal_0 < WrapperStruct00.var_1_1 [L84] WrapperStruct00.var_1_3 = -0.5 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L138] RET step() [L139] CALL, EXPR property() [L129] EXPR WrapperStruct00.var_1_1 [L129] EXPR WrapperStruct00.var_1_2 [L129] EXPR (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)))) [L129] EXPR WrapperStruct00.var_1_15 [L129] EXPR WrapperStruct00.var_1_1 VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR (WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))) [L129] EXPR WrapperStruct00.var_1_3 [L129] EXPR (WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR (WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR ((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14)))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR (((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11)))))))) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR ((((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))))))) && (WrapperStruct00.var_1_18 == ((float) WrapperStruct00.var_1_8)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR (((((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))))))) && (WrapperStruct00.var_1_18 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_19 == ((signed char) WrapperStruct00.var_1_12)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129] EXPR ((((((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))))))) && (WrapperStruct00.var_1_18 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_19 == ((signed char) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_20 == ((unsigned char) WrapperStruct00.var_1_21)) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L129-L130] return ((((((WrapperStruct00.var_1_1 == ((unsigned long int) WrapperStruct00.var_1_2)) && ((WrapperStruct00.var_1_15 < WrapperStruct00.var_1_1) ? (WrapperStruct00.var_1_3 == ((double) -0.5)) : (((- last_1_WrapperStruct00_var_1_3) == (WrapperStruct00.var_1_6 - WrapperStruct00.var_1_7)) ? (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8)) : (WrapperStruct00.var_1_3 == ((double) WrapperStruct00.var_1_8))))) && (((- (WrapperStruct00.var_1_10 - WrapperStruct00.var_1_11)) >= WrapperStruct00.var_1_19) ? (WrapperStruct00.var_1_9 == ((signed char) (WrapperStruct00.var_1_12 - ((((WrapperStruct00.var_1_13) > (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_13) : (WrapperStruct00.var_1_14)))))) : (WrapperStruct00.var_1_9 == ((signed char) ((((WrapperStruct00.var_1_12) < (WrapperStruct00.var_1_14)) ? (WrapperStruct00.var_1_12) : (WrapperStruct00.var_1_14))))))) && (WrapperStruct00.var_1_20 ? (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_12 - WrapperStruct00.var_1_14))) : (WrapperStruct00.var_1_15 == ((signed long int) (WrapperStruct00.var_1_13 - ((WrapperStruct00.var_1_17 - 4) + ((((WrapperStruct00.var_1_11) < 0 ) ? -(WrapperStruct00.var_1_11) : (WrapperStruct00.var_1_11))))))))) && (WrapperStruct00.var_1_18 == ((float) WrapperStruct00.var_1_8))) && (WrapperStruct00.var_1_19 == ((signed char) WrapperStruct00.var_1_12))) && (WrapperStruct00.var_1_20 == ((unsigned char) WrapperStruct00.var_1_21)) ; [L139] RET, EXPR property() [L139] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] [L19] reach_error() VAL [WrapperStruct00={4:0}, isInitial=1, last_1_WrapperStruct00_var_1_3=183/20] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 111 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 6, TraceHistogramMax: 19, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 54 mSDsluCounter, 1821 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1110 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 239 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 711 mSDtfsCounter, 239 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 914 NumberOfCodeBlocks, 914 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 755 ConstructedInterpolants, 0 QuantifiedInterpolants, 865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3420/3420 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 13:29:36,004 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/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_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd --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 b01652b30ec09a692ad6378ed531eb12202ad1b62f1f35df71071640dd6a83a1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:29:38,679 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:29:38,783 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 13:29:38,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:29:38,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:29:38,831 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:29:38,832 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:29:38,832 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:29:38,833 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:29:38,833 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:29:38,833 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:29:38,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:29:38,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:29:38,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:29:38,835 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:29:38,835 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:29:38,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:29:38,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:29:38,836 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:29:38,836 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:29:38,836 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:29:38,836 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:29:38,837 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:29:38,837 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 13:29:38,837 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 13:29:38,837 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:29:38,837 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 13:29:38,837 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:29:38,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:29:38,837 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:29:38,838 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:29:38,838 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:29:38,838 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:29:38,838 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:29:38,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:29:38,839 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:29:38,839 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:29:38,839 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:29:38,840 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 13:29:38,840 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 13:29:38,840 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:29:38,840 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:29:38,840 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:29:38,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:29:38,841 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_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd 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 -> b01652b30ec09a692ad6378ed531eb12202ad1b62f1f35df71071640dd6a83a1 [2024-11-13 13:29:39,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:29:39,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:29:39,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:29:39,160 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:29:39,163 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:29:39,164 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i Unable to find full path for "g++" [2024-11-13 13:29:41,121 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:29:41,413 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:29:41,413 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i [2024-11-13 13:29:41,422 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/data/6b8dd2d59/808e70b537be480eab0f916b5b8d44a4/FLAGdf0e356e0 [2024-11-13 13:29:41,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/data/6b8dd2d59/808e70b537be480eab0f916b5b8d44a4 [2024-11-13 13:29:41,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:29:41,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:29:41,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:29:41,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:29:41,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:29:41,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:41,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b23b78d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41, skipping insertion in model container [2024-11-13 13:29:41,455 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:41,477 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:29:41,651 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_1330295b-0a90-48b1-b18e-b186a97de183/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i[916,929] [2024-11-13 13:29:41,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:29:41,766 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:29:41,778 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_1330295b-0a90-48b1-b18e-b186a97de183/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-10.i[916,929] [2024-11-13 13:29:41,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:29:41,886 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:29:41,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41 WrapperNode [2024-11-13 13:29:41,887 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:29:41,888 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:29:41,889 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:29:41,889 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:29:41,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:41,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:41,987 INFO L138 Inliner]: procedures = 40, calls = 173, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 485 [2024-11-13 13:29:41,987 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:29:41,988 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:29:41,988 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:29:41,988 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:29:41,999 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:41,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,050 INFO L175 MemorySlicer]: Split 143 memory accesses to 2 slices as follows [2, 141]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 41 writes are split as follows [0, 41]. [2024-11-13 13:29:42,050 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,051 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,125 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:29:42,126 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:29:42,126 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:29:42,127 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:29:42,128 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (1/1) ... [2024-11-13 13:29:42,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:29:42,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:29:42,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:29:42,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:29:42,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:29:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-13 13:29:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-13 13:29:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#0 [2024-11-13 13:29:42,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8#1 [2024-11-13 13:29:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-13 13:29:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-13 13:29:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2024-11-13 13:29:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2024-11-13 13:29:42,205 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 13:29:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 13:29:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-13 13:29:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-13 13:29:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-13 13:29:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-13 13:29:42,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#0 [2024-11-13 13:29:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2#1 [2024-11-13 13:29:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#0 [2024-11-13 13:29:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4#1 [2024-11-13 13:29:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-13 13:29:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-13 13:29:42,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#0 [2024-11-13 13:29:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2#1 [2024-11-13 13:29:42,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#0 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1#1 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-13 13:29:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:29:42,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#0 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1#1 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#0 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2#1 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-13 13:29:42,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-13 13:29:42,376 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:29:42,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:29:46,033 INFO L? ?]: Removed 114 outVars from TransFormulas that were not future-live. [2024-11-13 13:29:46,033 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:29:46,046 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:29:46,050 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:29:46,051 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:46 BoogieIcfgContainer [2024-11-13 13:29:46,051 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:29:46,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:29:46,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:29:46,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:29:46,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:29:41" (1/3) ... [2024-11-13 13:29:46,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bedb7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:29:46, skipping insertion in model container [2024-11-13 13:29:46,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:29:41" (2/3) ... [2024-11-13 13:29:46,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bedb7b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:29:46, skipping insertion in model container [2024-11-13 13:29:46,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:29:46" (3/3) ... [2024-11-13 13:29:46,065 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-10.i [2024-11-13 13:29:46,082 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:29:46,088 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_wrapper-s_file-10.i that has 2 procedures, 111 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:29:46,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:29:46,228 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;@5751239a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:29:46,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:29:46,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:46,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:46,249 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:46,249 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:46,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:46,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1434332819, now seen corresponding path program 1 times [2024-11-13 13:29:46,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:46,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151045337] [2024-11-13 13:29:46,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:46,274 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 [2024-11-13 13:29:46,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:46,276 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:46,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:46,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 13:29:46,870 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:46,928 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2024-11-13 13:29:46,928 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:46,929 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:46,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151045337] [2024-11-13 13:29:46,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151045337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:46,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:46,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:29:46,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785832133] [2024-11-13 13:29:46,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:46,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 13:29:46,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:46,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 13:29:46,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:29:46,972 INFO L87 Difference]: Start difference. First operand has 111 states, 89 states have (on average 1.3820224719101124) internal successors, (123), 90 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:47,021 INFO L93 Difference]: Finished difference Result 215 states and 335 transitions. [2024-11-13 13:29:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 13:29:47,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-13 13:29:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:47,033 INFO L225 Difference]: With dead ends: 215 [2024-11-13 13:29:47,033 INFO L226 Difference]: Without dead ends: 107 [2024-11-13 13:29:47,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 13:29:47,040 INFO L432 NwaCegarLoop]: 152 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, 152 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 [2024-11-13 13:29:47,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 13:29:47,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-13 13:29:47,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-13 13:29:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 86 states have (on average 1.3255813953488371) internal successors, (114), 86 states have internal predecessors, (114), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:47,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 152 transitions. [2024-11-13 13:29:47,094 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 152 transitions. Word has length 152 [2024-11-13 13:29:47,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:47,094 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 152 transitions. [2024-11-13 13:29:47,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 32.0) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:47,094 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 152 transitions. [2024-11-13 13:29:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:47,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:47,098 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:47,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:47,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:29:47,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:47,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:47,303 INFO L85 PathProgramCache]: Analyzing trace with hash 88451027, now seen corresponding path program 1 times [2024-11-13 13:29:47,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:47,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435676672] [2024-11-13 13:29:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:47,304 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 [2024-11-13 13:29:47,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:47,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:47,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:47,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:47,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:29:47,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:47,876 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:29:47,876 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:47,876 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:47,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435676672] [2024-11-13 13:29:47,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435676672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:47,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:47,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:29:47,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230122486] [2024-11-13 13:29:47,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:47,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:29:47,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:47,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:29:47,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:29:47,879 INFO L87 Difference]: Start difference. First operand 107 states and 152 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:48,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:48,104 INFO L93 Difference]: Finished difference Result 218 states and 311 transitions. [2024-11-13 13:29:48,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:29:48,105 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-13 13:29:48,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:48,107 INFO L225 Difference]: With dead ends: 218 [2024-11-13 13:29:48,107 INFO L226 Difference]: Without dead ends: 114 [2024-11-13 13:29:48,108 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:29:48,108 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 1 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:48,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 705 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-13 13:29:48,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-13 13:29:48,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 113. [2024-11-13 13:29:48,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 92 states have (on average 1.3043478260869565) internal successors, (120), 92 states have internal predecessors, (120), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 158 transitions. [2024-11-13 13:29:48,121 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 158 transitions. Word has length 152 [2024-11-13 13:29:48,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:48,123 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 158 transitions. [2024-11-13 13:29:48,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:48,123 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 158 transitions. [2024-11-13 13:29:48,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:48,126 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:48,126 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:48,133 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:48,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:29:48,327 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:48,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:48,327 INFO L85 PathProgramCache]: Analyzing trace with hash 768509397, now seen corresponding path program 1 times [2024-11-13 13:29:48,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:48,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1133217241] [2024-11-13 13:29:48,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:48,328 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 [2024-11-13 13:29:48,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:48,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:48,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:48,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:48,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:29:48,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:48,869 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:29:48,869 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:48,870 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:48,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1133217241] [2024-11-13 13:29:48,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1133217241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:48,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:48,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 13:29:48,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414569462] [2024-11-13 13:29:48,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:48,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 13:29:48,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:48,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 13:29:48,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:29:48,875 INFO L87 Difference]: Start difference. First operand 113 states and 158 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:49,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:49,459 INFO L93 Difference]: Finished difference Result 226 states and 317 transitions. [2024-11-13 13:29:49,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:29:49,461 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-13 13:29:49,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:49,466 INFO L225 Difference]: With dead ends: 226 [2024-11-13 13:29:49,468 INFO L226 Difference]: Without dead ends: 116 [2024-11-13 13:29:49,469 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:29:49,470 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 1 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:49,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 834 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:29:49,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2024-11-13 13:29:49,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 115. [2024-11-13 13:29:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.297872340425532) internal successors, (122), 94 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 160 transitions. [2024-11-13 13:29:49,492 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 160 transitions. Word has length 152 [2024-11-13 13:29:49,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:49,495 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 160 transitions. [2024-11-13 13:29:49,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:49,496 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 160 transitions. [2024-11-13 13:29:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:49,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:49,502 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:49,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:49,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:29:49,706 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:49,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:49,707 INFO L85 PathProgramCache]: Analyzing trace with hash -1751450537, now seen corresponding path program 1 times [2024-11-13 13:29:49,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:49,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1033758975] [2024-11-13 13:29:49,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:49,708 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 [2024-11-13 13:29:49,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:49,714 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:49,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:50,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:29:50,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:50,342 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:29:50,343 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:50,344 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:50,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1033758975] [2024-11-13 13:29:50,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1033758975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:50,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:50,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 13:29:50,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703285723] [2024-11-13 13:29:50,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:50,345 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 13:29:50,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:50,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 13:29:50,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:29:50,348 INFO L87 Difference]: Start difference. First operand 115 states and 160 transitions. Second operand has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:50,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:50,793 INFO L93 Difference]: Finished difference Result 230 states and 321 transitions. [2024-11-13 13:29:50,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 13:29:50,794 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 152 [2024-11-13 13:29:50,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:50,796 INFO L225 Difference]: With dead ends: 230 [2024-11-13 13:29:50,798 INFO L226 Difference]: Without dead ends: 118 [2024-11-13 13:29:50,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:29:50,800 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:50,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 965 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:29:50,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-13 13:29:50,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-13 13:29:50,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.2916666666666667) internal successors, (124), 96 states have internal predecessors, (124), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:50,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 162 transitions. [2024-11-13 13:29:50,816 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 162 transitions. Word has length 152 [2024-11-13 13:29:50,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:50,817 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 162 transitions. [2024-11-13 13:29:50,817 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.5) internal successors, (60), 8 states have internal predecessors, (60), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:29:50,817 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 162 transitions. [2024-11-13 13:29:50,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-13 13:29:50,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:50,819 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:50,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2024-11-13 13:29:51,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:29:51,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:51,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:51,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1749603495, now seen corresponding path program 1 times [2024-11-13 13:29:51,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:51,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [957558244] [2024-11-13 13:29:51,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:51,021 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 [2024-11-13 13:29:51,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:51,024 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:51,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:51,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:29:51,421 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:51,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:51,630 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 173 treesize of output 65 [2024-11-13 13:29:51,689 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-13 13:29:51,690 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:51,690 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:51,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [957558244] [2024-11-13 13:29:51,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [957558244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:51,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:51,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:29:51,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69211427] [2024-11-13 13:29:51,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:51,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:29:51,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:51,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:29:51,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:29:51,692 INFO L87 Difference]: Start difference. First operand 117 states and 162 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:52,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:54,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:54,745 INFO L93 Difference]: Finished difference Result 232 states and 322 transitions. [2024-11-13 13:29:54,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:29:54,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 152 [2024-11-13 13:29:54,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:54,747 INFO L225 Difference]: With dead ends: 232 [2024-11-13 13:29:54,747 INFO L226 Difference]: Without dead ends: 118 [2024-11-13 13:29:54,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:29:54,749 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 138 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:54,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 426 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:29:54,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-13 13:29:54,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-13 13:29:54,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.28125) internal successors, (123), 96 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:54,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 161 transitions. [2024-11-13 13:29:54,760 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 161 transitions. Word has length 152 [2024-11-13 13:29:54,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:54,760 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 161 transitions. [2024-11-13 13:29:54,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 5 states have internal predecessors, (63), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:54,761 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 161 transitions. [2024-11-13 13:29:54,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-13 13:29:54,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:54,763 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:54,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-13 13:29:54,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:29:54,964 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:54,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:54,964 INFO L85 PathProgramCache]: Analyzing trace with hash 922472127, now seen corresponding path program 1 times [2024-11-13 13:29:54,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:54,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464246516] [2024-11-13 13:29:54,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:54,965 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 [2024-11-13 13:29:54,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:54,966 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:54,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:55,377 INFO L255 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-13 13:29:55,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:55,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:29:55,601 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 173 treesize of output 65 [2024-11-13 13:29:55,650 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2024-11-13 13:29:55,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:55,651 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:55,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464246516] [2024-11-13 13:29:55,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464246516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:55,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:55,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:29:55,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836962787] [2024-11-13 13:29:55,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:55,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:29:55,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:55,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:29:55,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:29:55,654 INFO L87 Difference]: Start difference. First operand 117 states and 161 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:56,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:29:58,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:58,910 INFO L93 Difference]: Finished difference Result 232 states and 320 transitions. [2024-11-13 13:29:58,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:29:58,911 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2024-11-13 13:29:58,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:58,912 INFO L225 Difference]: With dead ends: 232 [2024-11-13 13:29:58,912 INFO L226 Difference]: Without dead ends: 118 [2024-11-13 13:29:58,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:29:58,913 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 128 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:58,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 422 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 13:29:58,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-13 13:29:58,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2024-11-13 13:29:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.2708333333333333) internal successors, (122), 96 states have internal predecessors, (122), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:29:58,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 160 transitions. [2024-11-13 13:29:58,930 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 160 transitions. Word has length 154 [2024-11-13 13:29:58,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:58,930 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 160 transitions. [2024-11-13 13:29:58,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 5 states have internal predecessors, (65), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:29:58,930 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 160 transitions. [2024-11-13 13:29:58,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-13 13:29:58,932 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:58,932 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:58,942 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:59,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:29:59,133 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:59,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash -65512293, now seen corresponding path program 1 times [2024-11-13 13:29:59,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:29:59,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644682814] [2024-11-13 13:29:59,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:59,134 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 [2024-11-13 13:29:59,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:29:59,136 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:29:59,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:29:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:59,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:29:59,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 249 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-13 13:29:59,609 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:59,610 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:29:59,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644682814] [2024-11-13 13:29:59,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1644682814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:59,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:59,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:29:59,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672047500] [2024-11-13 13:29:59,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:59,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:29:59,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:29:59,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:29:59,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:29:59,612 INFO L87 Difference]: Start difference. First operand 117 states and 160 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-13 13:30:00,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:30:00,168 INFO L93 Difference]: Finished difference Result 235 states and 322 transitions. [2024-11-13 13:30:00,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:30:00,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 156 [2024-11-13 13:30:00,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:30:00,176 INFO L225 Difference]: With dead ends: 235 [2024-11-13 13:30:00,176 INFO L226 Difference]: Without dead ends: 119 [2024-11-13 13:30:00,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:30:00,177 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 1 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:30:00,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 590 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:30:00,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-13 13:30:00,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-13 13:30:00,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 96 states have (on average 1.2604166666666667) internal successors, (121), 96 states have internal predecessors, (121), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:30:00,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 159 transitions. [2024-11-13 13:30:00,187 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 159 transitions. Word has length 156 [2024-11-13 13:30:00,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:30:00,187 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 159 transitions. [2024-11-13 13:30:00,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-13 13:30:00,187 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 159 transitions. [2024-11-13 13:30:00,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-13 13:30:00,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:30:00,190 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:30:00,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-13 13:30:00,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:30:00,390 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:30:00,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:30:00,391 INFO L85 PathProgramCache]: Analyzing trace with hash 641084313, now seen corresponding path program 1 times [2024-11-13 13:30:00,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:30:00,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1908444821] [2024-11-13 13:30:00,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:30:00,391 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 [2024-11-13 13:30:00,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:30:00,393 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:30:00,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:30:00,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:30:00,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-13 13:30:00,897 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:30:00,914 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 [2024-11-13 13:30:00,960 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:00,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 37 [2024-11-13 13:30:01,123 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:01,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 43 [2024-11-13 13:30:01,178 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:01,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 43 [2024-11-13 13:30:01,246 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:30:01,247 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 63 [2024-11-13 13:30:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:30:05,407 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:30:05,407 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:30:05,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1908444821] [2024-11-13 13:30:05,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1908444821] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:30:05,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:30:05,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:30:05,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890039346] [2024-11-13 13:30:05,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:30:05,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:30:05,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:30:05,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:30:05,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=11, Unknown=1, NotChecked=0, Total=20 [2024-11-13 13:30:05,410 INFO L87 Difference]: Start difference. First operand 117 states and 159 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:30:06,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:30:10,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:14,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:18,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:22,858 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:26,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:30,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:34,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:38,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:42,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:46,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:50,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:54,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:30:58,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:31:02,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:31:06,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:31:10,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:31:12,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:12,156 INFO L93 Difference]: Finished difference Result 231 states and 315 transitions. [2024-11-13 13:31:12,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:12,158 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 156 [2024-11-13 13:31:12,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:12,159 INFO L225 Difference]: With dead ends: 231 [2024-11-13 13:31:12,159 INFO L226 Difference]: Without dead ends: 117 [2024-11-13 13:31:12,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2024-11-13 13:31:12,160 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 95 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 6 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 66.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:12,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 272 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 114 Invalid, 16 Unknown, 0 Unchecked, 66.7s Time] [2024-11-13 13:31:12,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-13 13:31:12,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-13 13:31:12,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 94 states have (on average 1.2553191489361701) internal successors, (118), 94 states have internal predecessors, (118), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:31:12,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 156 transitions. [2024-11-13 13:31:12,169 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 156 transitions. Word has length 156 [2024-11-13 13:31:12,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:12,170 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 156 transitions. [2024-11-13 13:31:12,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 5 states have internal predecessors, (64), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:31:12,171 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 156 transitions. [2024-11-13 13:31:12,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-13 13:31:12,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:12,172 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:12,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:31:12,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:31:12,373 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:12,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:12,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1658662924, now seen corresponding path program 1 times [2024-11-13 13:31:12,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:31:12,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795791999] [2024-11-13 13:31:12,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:12,374 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 [2024-11-13 13:31:12,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:31:12,375 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:31:12,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-13 13:31:13,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:13,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 13:31:13,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:31:13,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-13 13:31:13,095 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2024-11-13 13:31:13,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:13,247 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 139 treesize of output 55 [2024-11-13 13:31:13,321 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:31:13,321 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:31:13,321 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:31:13,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795791999] [2024-11-13 13:31:13,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1795791999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:31:13,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:31:13,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:31:13,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296107018] [2024-11-13 13:31:13,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:13,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:31:13,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:31:13,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:31:13,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:31:13,323 INFO L87 Difference]: Start difference. First operand 115 states and 156 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:31:14,549 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 [0] [2024-11-13 13:31:18,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:18,412 INFO L93 Difference]: Finished difference Result 342 states and 466 transitions. [2024-11-13 13:31:18,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:31:18,418 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 158 [2024-11-13 13:31:18,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:18,420 INFO L225 Difference]: With dead ends: 342 [2024-11-13 13:31:18,421 INFO L226 Difference]: Without dead ends: 230 [2024-11-13 13:31:18,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:31:18,422 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 127 mSDsluCounter, 646 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:18,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 841 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 369 Invalid, 1 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 13:31:18,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-13 13:31:18,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 121. [2024-11-13 13:31:18,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.25) internal successors, (125), 100 states have internal predecessors, (125), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:31:18,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 163 transitions. [2024-11-13 13:31:18,448 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 163 transitions. Word has length 158 [2024-11-13 13:31:18,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:18,450 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 163 transitions. [2024-11-13 13:31:18,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:31:18,452 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 163 transitions. [2024-11-13 13:31:18,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-13 13:31:18,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:18,454 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:18,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-13 13:31:18,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:31:18,658 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:18,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:18,658 INFO L85 PathProgramCache]: Analyzing trace with hash 1444341707, now seen corresponding path program 1 times [2024-11-13 13:31:18,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:31:18,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2089108857] [2024-11-13 13:31:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:18,659 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 [2024-11-13 13:31:18,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:31:18,663 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:31:18,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:31:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:19,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 13:31:19,516 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:31:19,541 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 8 treesize of output 1 [2024-11-13 13:31:19,677 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 [2024-11-13 13:31:19,772 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 [2024-11-13 13:31:20,046 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:20,046 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 72 treesize of output 39 [2024-11-13 13:31:20,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:20,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 42 [2024-11-13 13:31:20,361 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:20,362 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 71 treesize of output 67 [2024-11-13 13:31:21,152 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:21,152 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 102 [2024-11-13 13:31:25,531 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:25,531 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 125 treesize of output 51 [2024-11-13 13:31:27,601 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 328 proven. 15 refuted. 0 times theorem prover too weak. 341 trivial. 0 not checked. [2024-11-13 13:31:27,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:31:28,699 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:31:28,699 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:31:28,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2089108857] [2024-11-13 13:31:28,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2089108857] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:31:28,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:31:28,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-13 13:31:28,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905957664] [2024-11-13 13:31:28,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:28,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:28,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:31:28,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:28,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=184, Unknown=1, NotChecked=0, Total=240 [2024-11-13 13:31:28,701 INFO L87 Difference]: Start difference. First operand 121 states and 163 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:31:31,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:31,906 INFO L93 Difference]: Finished difference Result 336 states and 454 transitions. [2024-11-13 13:31:31,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:31,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 159 [2024-11-13 13:31:31,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:31,909 INFO L225 Difference]: With dead ends: 336 [2024-11-13 13:31:31,909 INFO L226 Difference]: Without dead ends: 218 [2024-11-13 13:31:31,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=60, Invalid=211, Unknown=1, NotChecked=0, Total=272 [2024-11-13 13:31:31,911 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 115 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:31,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 420 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:31:31,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-13 13:31:31,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 121. [2024-11-13 13:31:31,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.24) internal successors, (124), 100 states have internal predecessors, (124), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:31:31,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 162 transitions. [2024-11-13 13:31:31,929 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 162 transitions. Word has length 159 [2024-11-13 13:31:31,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:31,929 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 162 transitions. [2024-11-13 13:31:31,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:31:31,930 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 162 transitions. [2024-11-13 13:31:31,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-13 13:31:31,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:31,931 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:31,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2024-11-13 13:31:32,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:31:32,136 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:32,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:32,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1453390162, now seen corresponding path program 1 times [2024-11-13 13:31:32,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:31:32,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1782312819] [2024-11-13 13:31:32,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:32,137 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 [2024-11-13 13:31:32,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:31:32,141 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:31:32,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:31:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:32,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-13 13:31:32,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:31:32,950 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 [2024-11-13 13:31:33,096 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 [2024-11-13 13:31:33,167 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 [2024-11-13 13:31:33,238 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 60 treesize of output 15 [2024-11-13 13:31:33,257 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 [2024-11-13 13:31:33,277 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:33,277 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 44 treesize of output 40 [2024-11-13 13:31:33,467 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:33,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 63 [2024-11-13 13:31:33,644 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:33,644 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 92 treesize of output 36 [2024-11-13 13:31:35,119 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 304 proven. 15 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-13 13:31:35,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:31:36,332 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:31:36,332 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:31:36,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1782312819] [2024-11-13 13:31:36,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1782312819] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:31:36,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:31:36,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-11-13 13:31:36,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839979063] [2024-11-13 13:31:36,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:31:36,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:31:36,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:31:36,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:31:36,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-13 13:31:36,335 INFO L87 Difference]: Start difference. First operand 121 states and 162 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:31:38,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:31:42,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:31:42,220 INFO L93 Difference]: Finished difference Result 329 states and 443 transitions. [2024-11-13 13:31:42,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:31:42,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 160 [2024-11-13 13:31:42,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:31:42,231 INFO L225 Difference]: With dead ends: 329 [2024-11-13 13:31:42,231 INFO L226 Difference]: Without dead ends: 211 [2024-11-13 13:31:42,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:31:42,233 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 180 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:31:42,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 468 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 13:31:42,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-13 13:31:42,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 121. [2024-11-13 13:31:42,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 100 states have (on average 1.23) internal successors, (123), 100 states have internal predecessors, (123), 19 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-13 13:31:42,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 161 transitions. [2024-11-13 13:31:42,254 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 161 transitions. Word has length 160 [2024-11-13 13:31:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:31:42,254 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 161 transitions. [2024-11-13 13:31:42,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:31:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 161 transitions. [2024-11-13 13:31:42,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-13 13:31:42,257 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:31:42,257 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:31:42,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:31:42,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:31:42,457 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:31:42,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:31:42,458 INFO L85 PathProgramCache]: Analyzing trace with hash -173243195, now seen corresponding path program 1 times [2024-11-13 13:31:42,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:31:42,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814179122] [2024-11-13 13:31:42,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:42,459 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 [2024-11-13 13:31:42,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:31:42,461 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:31:42,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:31:43,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:43,599 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-13 13:31:43,609 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:31:43,834 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 [2024-11-13 13:31:44,250 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:44,251 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 132 treesize of output 59 [2024-11-13 13:31:44,436 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:44,436 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 127 treesize of output 69 [2024-11-13 13:31:44,828 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:44,828 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 72 [2024-11-13 13:31:45,231 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:45,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 72 [2024-11-13 13:31:45,572 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:45,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 82 [2024-11-13 13:31:46,091 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:46,092 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 85 [2024-11-13 13:31:46,523 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:46,524 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 85 [2024-11-13 13:31:46,982 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:46,982 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 183 treesize of output 105 [2024-11-13 13:31:47,258 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:47,259 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 169 treesize of output 108 [2024-11-13 13:31:47,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:47,354 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 169 treesize of output 108 [2024-11-13 13:31:47,515 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:47,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 227 treesize of output 149 [2024-11-13 13:31:48,029 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:48,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 435 treesize of output 147 [2024-11-13 13:31:48,365 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 288 proven. 240 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-13 13:31:48,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:31:49,108 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:31:49,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814179122] [2024-11-13 13:31:49,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814179122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:31:49,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280085220] [2024-11-13 13:31:49,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:31:49,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:31:49,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:31:49,114 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:31:49,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-13 13:31:50,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:31:50,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-13 13:31:50,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:31:51,207 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:51,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 127 treesize of output 69 [2024-11-13 13:31:51,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:51,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 142 treesize of output 72 [2024-11-13 13:31:52,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:52,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 82 [2024-11-13 13:31:52,687 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:52,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 85 [2024-11-13 13:31:53,101 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:53,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 85 [2024-11-13 13:31:53,632 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:53,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 152 treesize of output 85 [2024-11-13 13:31:54,073 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:54,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 147 treesize of output 95 [2024-11-13 13:31:54,860 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:54,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 193 treesize of output 109 [2024-11-13 13:31:55,332 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:55,332 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 112 [2024-11-13 13:31:55,710 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:55,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 179 treesize of output 112 [2024-11-13 13:31:55,923 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:55,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 237 treesize of output 153 [2024-11-13 13:31:56,671 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:31:56,672 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 440 treesize of output 152 [2024-11-13 13:31:56,728 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 280 proven. 249 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-11-13 13:31:56,728 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:31:57,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280085220] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:31:57,066 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:31:57,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 21 [2024-11-13 13:31:57,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454594701] [2024-11-13 13:31:57,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:31:57,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 13:31:57,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:31:57,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 13:31:57,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=556, Unknown=0, NotChecked=0, Total=650 [2024-11-13 13:31:57,068 INFO L87 Difference]: Start difference. First operand 121 states and 161 transitions. Second operand has 22 states, 22 states have (on average 5.363636363636363) internal successors, (118), 21 states have internal predecessors, (118), 7 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-13 13:32:00,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:32:02,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:32:03,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:32:04,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:32:08,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:32:12,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.10s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:32:13,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:32:15,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:32:18,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:32:20,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:32:49,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:49,620 INFO L93 Difference]: Finished difference Result 466 states and 598 transitions. [2024-11-13 13:32:49,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-13 13:32:49,629 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 5.363636363636363) internal successors, (118), 21 states have internal predecessors, (118), 7 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) Word has length 161 [2024-11-13 13:32:49,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:49,647 INFO L225 Difference]: With dead ends: 466 [2024-11-13 13:32:49,647 INFO L226 Difference]: Without dead ends: 348 [2024-11-13 13:32:49,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 355 SyntacticMatches, 3 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=801, Invalid=3359, Unknown=0, NotChecked=0, Total=4160 [2024-11-13 13:32:49,649 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 625 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 2332 mSolverCounterSat, 137 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 137 IncrementalHoareTripleChecker+Valid, 2332 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:49,649 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 1124 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [137 Valid, 2332 Invalid, 1 Unknown, 0 Unchecked, 43.1s Time] [2024-11-13 13:32:49,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2024-11-13 13:32:49,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 252. [2024-11-13 13:32:49,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 205 states have (on average 1.2097560975609756) internal successors, (248), 206 states have internal predecessors, (248), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:32:49,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 324 transitions. [2024-11-13 13:32:49,704 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 324 transitions. Word has length 161 [2024-11-13 13:32:49,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:49,704 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 324 transitions. [2024-11-13 13:32:49,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 5.363636363636363) internal successors, (118), 21 states have internal predecessors, (118), 7 states have call successors, (33), 7 states have call predecessors, (33), 8 states have return successors, (34), 7 states have call predecessors, (34), 7 states have call successors, (34) [2024-11-13 13:32:49,705 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 324 transitions. [2024-11-13 13:32:49,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-13 13:32:49,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:49,710 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:32:49,729 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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)] Forceful destruction successful, exit code 0 [2024-11-13 13:32:49,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-13 13:32:50,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:32:50,111 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:50,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash 2071315203, now seen corresponding path program 1 times [2024-11-13 13:32:50,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:32:50,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291302360] [2024-11-13 13:32:50,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:50,112 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 [2024-11-13 13:32:50,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:32:50,114 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:32:50,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:32:50,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:50,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:32:50,776 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:32:50,804 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 444 trivial. 0 not checked. [2024-11-13 13:32:50,804 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:32:50,804 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:32:50,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291302360] [2024-11-13 13:32:50,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291302360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:32:50,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:32:50,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:32:50,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794107650] [2024-11-13 13:32:50,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:32:50,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:32:50,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:32:50,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:32:50,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:32:50,807 INFO L87 Difference]: Start difference. First operand 252 states and 324 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:32:51,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:32:51,246 INFO L93 Difference]: Finished difference Result 501 states and 645 transitions. [2024-11-13 13:32:51,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:32:51,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 161 [2024-11-13 13:32:51,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:32:51,259 INFO L225 Difference]: With dead ends: 501 [2024-11-13 13:32:51,260 INFO L226 Difference]: Without dead ends: 252 [2024-11-13 13:32:51,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:32:51,261 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:32:51,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 430 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 13:32:51,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2024-11-13 13:32:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2024-11-13 13:32:51,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 205 states have (on average 1.2048780487804878) internal successors, (247), 206 states have internal predecessors, (247), 38 states have call successors, (38), 8 states have call predecessors, (38), 8 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-13 13:32:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 323 transitions. [2024-11-13 13:32:51,316 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 323 transitions. Word has length 161 [2024-11-13 13:32:51,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:32:51,316 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 323 transitions. [2024-11-13 13:32:51,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-13 13:32:51,317 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 323 transitions. [2024-11-13 13:32:51,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:32:51,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:32:51,319 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:32:51,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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 [2024-11-13 13:32:51,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:32:51,519 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:32:51,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:32:51,520 INFO L85 PathProgramCache]: Analyzing trace with hash -2092769525, now seen corresponding path program 1 times [2024-11-13 13:32:51,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:32:51,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1554633230] [2024-11-13 13:32:51,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:32:51,520 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 [2024-11-13 13:32:51,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:32:51,523 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:32:51,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2024-11-13 13:32:52,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:32:52,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 13:32:52,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:32:52,246 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 [2024-11-13 13:32:52,575 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 [2024-11-13 13:32:53,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 42 [2024-11-13 13:32:54,619 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:54,619 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 61 treesize of output 45 [2024-11-13 13:32:55,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:55,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 56 treesize of output 55 [2024-11-13 13:32:56,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:56,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-13 13:32:56,561 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:56,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 53 [2024-11-13 13:32:57,231 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 36 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 84 [2024-11-13 13:32:58,068 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:58,068 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 105 [2024-11-13 13:32:58,471 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:58,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 121 treesize of output 105 [2024-11-13 13:32:58,749 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:32:58,750 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 127 treesize of output 115 [2024-11-13 13:33:03,583 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:03,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 137 treesize of output 59 [2024-11-13 13:33:03,818 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 484 proven. 87 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 13:33:03,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:33:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:33:04,495 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:33:04,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1554633230] [2024-11-13 13:33:04,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1554633230] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:33:04,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:33:04,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [22] total 25 [2024-11-13 13:33:04,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653444780] [2024-11-13 13:33:04,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:33:04,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:33:04,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:33:04,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:33:04,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=469, Unknown=1, NotChecked=0, Total=600 [2024-11-13 13:33:04,498 INFO L87 Difference]: Start difference. First operand 252 states and 323 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:33:08,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:33:08,934 INFO L93 Difference]: Finished difference Result 658 states and 840 transitions. [2024-11-13 13:33:08,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:33:08,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:33:08,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:33:08,939 INFO L225 Difference]: With dead ends: 658 [2024-11-13 13:33:08,939 INFO L226 Difference]: Without dead ends: 409 [2024-11-13 13:33:08,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 298 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=135, Invalid=514, Unknown=1, NotChecked=0, Total=650 [2024-11-13 13:33:08,941 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 76 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:33:08,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 351 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 13:33:08,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2024-11-13 13:33:09,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 400. [2024-11-13 13:33:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 342 states have (on average 1.2163742690058479) internal successors, (416), 345 states have internal predecessors, (416), 47 states have call successors, (47), 10 states have call predecessors, (47), 10 states have return successors, (47), 44 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-13 13:33:09,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 510 transitions. [2024-11-13 13:33:09,026 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 510 transitions. Word has length 162 [2024-11-13 13:33:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:33:09,027 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 510 transitions. [2024-11-13 13:33:09,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:33:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 510 transitions. [2024-11-13 13:33:09,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:33:09,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:33:09,030 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:33:09,045 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2024-11-13 13:33:09,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:33:09,231 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:33:09,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:33:09,232 INFO L85 PathProgramCache]: Analyzing trace with hash -1964605758, now seen corresponding path program 1 times [2024-11-13 13:33:09,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:33:09,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672627461] [2024-11-13 13:33:09,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:09,233 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 [2024-11-13 13:33:09,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:33:09,235 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:33:09,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2024-11-13 13:33:10,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:10,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-13 13:33:10,104 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:33:10,117 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 [2024-11-13 13:33:10,229 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 [2024-11-13 13:33:10,411 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:10,412 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 41 treesize of output 28 [2024-11-13 13:33:10,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:10,590 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 41 treesize of output 28 [2024-11-13 13:33:10,761 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:10,762 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 38 [2024-11-13 13:33:11,121 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:11,122 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 82 treesize of output 52 [2024-11-13 13:33:11,382 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:11,382 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 69 [2024-11-13 13:33:11,557 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:11,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 82 treesize of output 72 [2024-11-13 13:33:11,633 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:11,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 83 treesize of output 92 [2024-11-13 13:33:16,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:16,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 104 treesize of output 44 [2024-11-13 13:33:16,656 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 440 proven. 27 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2024-11-13 13:33:16,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:33:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:33:17,294 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:33:17,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672627461] [2024-11-13 13:33:17,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672627461] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:33:17,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:33:17,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [17] total 22 [2024-11-13 13:33:17,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090306730] [2024-11-13 13:33:17,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:33:17,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:33:17,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:33:17,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:33:17,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=388, Unknown=1, NotChecked=0, Total=462 [2024-11-13 13:33:17,297 INFO L87 Difference]: Start difference. First operand 400 states and 510 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:33:18,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:33:20,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:33:23,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:33:28,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:33:28,722 INFO L93 Difference]: Finished difference Result 992 states and 1257 transitions. [2024-11-13 13:33:28,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:33:28,723 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:33:28,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:33:28,727 INFO L225 Difference]: With dead ends: 992 [2024-11-13 13:33:28,727 INFO L226 Difference]: Without dead ends: 595 [2024-11-13 13:33:28,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=96, Invalid=605, Unknown=1, NotChecked=0, Total=702 [2024-11-13 13:33:28,730 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 88 mSDsluCounter, 845 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:33:28,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 995 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-13 13:33:28,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2024-11-13 13:33:28,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 570. [2024-11-13 13:33:28,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 496 states have (on average 1.2137096774193548) internal successors, (602), 501 states have internal predecessors, (602), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 13:33:28,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 722 transitions. [2024-11-13 13:33:28,834 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 722 transitions. Word has length 162 [2024-11-13 13:33:28,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:33:28,834 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 722 transitions. [2024-11-13 13:33:28,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:33:28,835 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 722 transitions. [2024-11-13 13:33:28,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:33:28,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:33:28,837 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:33:28,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2024-11-13 13:33:29,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:33:29,039 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:33:29,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:33:29,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1050497860, now seen corresponding path program 1 times [2024-11-13 13:33:29,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:33:29,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [298151572] [2024-11-13 13:33:29,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:29,040 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 [2024-11-13 13:33:29,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:33:29,043 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:33:29,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2024-11-13 13:33:29,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:29,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 13:33:29,863 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:33:29,870 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 [2024-11-13 13:33:29,880 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2024-11-13 13:33:29,985 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 25 treesize of output 24 [2024-11-13 13:33:30,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:30,376 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 51 treesize of output 32 [2024-11-13 13:33:30,594 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:30,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 42 [2024-11-13 13:33:30,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:30,974 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 79 treesize of output 40 [2024-11-13 13:33:31,275 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:31,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 56 [2024-11-13 13:33:31,361 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:31,361 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 56 [2024-11-13 13:33:31,439 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:31,439 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 76 [2024-11-13 13:33:35,910 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:35,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 37 [2024-11-13 13:33:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 429 proven. 15 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-13 13:33:36,009 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:33:36,441 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:33:36,441 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:33:36,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [298151572] [2024-11-13 13:33:36,441 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [298151572] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:33:36,441 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:33:36,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-13 13:33:36,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375952909] [2024-11-13 13:33:36,442 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:33:36,442 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:33:36,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:33:36,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:33:36,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=178, Unknown=1, NotChecked=0, Total=240 [2024-11-13 13:33:36,444 INFO L87 Difference]: Start difference. First operand 570 states and 722 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:33:38,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:33:42,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:33:42,950 INFO L93 Difference]: Finished difference Result 1152 states and 1455 transitions. [2024-11-13 13:33:42,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:33:42,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:33:42,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:33:42,961 INFO L225 Difference]: With dead ends: 1152 [2024-11-13 13:33:42,961 INFO L226 Difference]: Without dead ends: 585 [2024-11-13 13:33:42,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=66, Invalid=205, Unknown=1, NotChecked=0, Total=272 [2024-11-13 13:33:42,965 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 144 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:33:42,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 404 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-13 13:33:42,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-13 13:33:43,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 560. [2024-11-13 13:33:43,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 486 states have (on average 1.2098765432098766) internal successors, (588), 491 states have internal predecessors, (588), 60 states have call successors, (60), 13 states have call predecessors, (60), 13 states have return successors, (60), 55 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-13 13:33:43,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 708 transitions. [2024-11-13 13:33:43,081 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 708 transitions. Word has length 162 [2024-11-13 13:33:43,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:33:43,082 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 708 transitions. [2024-11-13 13:33:43,083 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:33:43,083 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 708 transitions. [2024-11-13 13:33:43,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:33:43,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:33:43,085 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:33:43,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Ended with exit code 0 [2024-11-13 13:33:43,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:33:43,286 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:33:43,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:33:43,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1820888448, now seen corresponding path program 1 times [2024-11-13 13:33:43,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:33:43,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1587453087] [2024-11-13 13:33:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:43,287 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 [2024-11-13 13:33:43,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:33:43,290 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:33:43,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2024-11-13 13:33:43,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:44,020 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-13 13:33:44,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:33:44,036 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 [2024-11-13 13:33:44,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:33:44,053 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 [2024-11-13 13:33:44,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 19 [2024-11-13 13:33:44,461 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 [2024-11-13 13:33:44,758 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:44,758 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 73 treesize of output 63 [2024-11-13 13:33:45,194 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:45,195 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 77 [2024-11-13 13:33:45,375 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:45,376 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 90 treesize of output 77 [2024-11-13 13:33:45,476 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:45,476 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 96 treesize of output 87 [2024-11-13 13:33:50,100 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:50,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 96 treesize of output 38 [2024-11-13 13:33:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 341 proven. 15 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-11-13 13:33:50,223 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:33:50,658 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:33:50,658 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:33:50,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1587453087] [2024-11-13 13:33:50,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1587453087] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:33:50,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:33:50,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [13] total 16 [2024-11-13 13:33:50,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307699948] [2024-11-13 13:33:50,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:33:50,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:33:50,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:33:50,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:33:50,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=181, Unknown=1, NotChecked=0, Total=240 [2024-11-13 13:33:50,661 INFO L87 Difference]: Start difference. First operand 560 states and 708 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:33:54,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:33:54,630 INFO L93 Difference]: Finished difference Result 1154 states and 1454 transitions. [2024-11-13 13:33:54,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:33:54,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:33:54,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:33:54,635 INFO L225 Difference]: With dead ends: 1154 [2024-11-13 13:33:54,635 INFO L226 Difference]: Without dead ends: 597 [2024-11-13 13:33:54,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 306 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=63, Invalid=208, Unknown=1, NotChecked=0, Total=272 [2024-11-13 13:33:54,638 INFO L432 NwaCegarLoop]: 134 mSDtfsCounter, 83 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:33:54,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 417 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 13:33:54,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-13 13:33:54,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 465. [2024-11-13 13:33:54,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 402 states have (on average 1.2014925373134329) internal successors, (483), 405 states have internal predecessors, (483), 51 states have call successors, (51), 11 states have call predecessors, (51), 11 states have return successors, (51), 48 states have call predecessors, (51), 51 states have call successors, (51) [2024-11-13 13:33:54,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 585 transitions. [2024-11-13 13:33:54,738 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 585 transitions. Word has length 162 [2024-11-13 13:33:54,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:33:54,740 INFO L471 AbstractCegarLoop]: Abstraction has 465 states and 585 transitions. [2024-11-13 13:33:54,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:33:54,740 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 585 transitions. [2024-11-13 13:33:54,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:33:54,742 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:33:54,742 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:33:54,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2024-11-13 13:33:54,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:33:54,943 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:33:54,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:33:54,943 INFO L85 PathProgramCache]: Analyzing trace with hash 541024770, now seen corresponding path program 1 times [2024-11-13 13:33:54,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:33:54,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282126810] [2024-11-13 13:33:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:33:54,944 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:33:54,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:33:54,946 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:33:54,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2024-11-13 13:33:55,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:33:55,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-13 13:33:55,688 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:33:55,702 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 [2024-11-13 13:33:55,816 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 [2024-11-13 13:33:55,883 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 [2024-11-13 13:33:55,959 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:55,959 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 62 treesize of output 31 [2024-11-13 13:33:56,093 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:56,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 48 treesize of output 47 [2024-11-13 13:33:56,197 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:56,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 50 [2024-11-13 13:33:56,245 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:56,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 50 [2024-11-13 13:33:56,487 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:33:56,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 65 treesize of output 25 [2024-11-13 13:33:56,812 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 304 proven. 15 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-13 13:33:56,812 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:33:57,371 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:33:57,371 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:33:57,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282126810] [2024-11-13 13:33:57,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282126810] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:33:57,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:33:57,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 19 [2024-11-13 13:33:57,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152138904] [2024-11-13 13:33:57,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:33:57,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:33:57,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:33:57,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:33:57,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:33:57,373 INFO L87 Difference]: Start difference. First operand 465 states and 585 transitions. Second operand has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:34:00,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:34:01,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:34:02,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:34:08,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:34:08,089 INFO L93 Difference]: Finished difference Result 1081 states and 1357 transitions. [2024-11-13 13:34:08,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 13:34:08,090 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:34:08,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:34:08,093 INFO L225 Difference]: With dead ends: 1081 [2024-11-13 13:34:08,093 INFO L226 Difference]: Without dead ends: 619 [2024-11-13 13:34:08,095 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2024-11-13 13:34:08,095 INFO L432 NwaCegarLoop]: 207 mSDtfsCounter, 93 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:34:08,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1294 Invalid, 689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2024-11-13 13:34:08,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2024-11-13 13:34:08,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 582. [2024-11-13 13:34:08,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 582 states, 498 states have (on average 1.1967871485943775) internal successors, (596), 503 states have internal predecessors, (596), 68 states have call successors, (68), 15 states have call predecessors, (68), 15 states have return successors, (68), 63 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-13 13:34:08,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 582 states and 732 transitions. [2024-11-13 13:34:08,225 INFO L78 Accepts]: Start accepts. Automaton has 582 states and 732 transitions. Word has length 162 [2024-11-13 13:34:08,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:34:08,227 INFO L471 AbstractCegarLoop]: Abstraction has 582 states and 732 transitions. [2024-11-13 13:34:08,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:34:08,227 INFO L276 IsEmpty]: Start isEmpty. Operand 582 states and 732 transitions. [2024-11-13 13:34:08,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:34:08,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:34:08,229 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:34:08,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2024-11-13 13:34:08,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:34:08,431 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:34:08,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:34:08,431 INFO L85 PathProgramCache]: Analyzing trace with hash -1807680158, now seen corresponding path program 1 times [2024-11-13 13:34:08,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:34:08,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [675860503] [2024-11-13 13:34:08,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:08,432 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 [2024-11-13 13:34:08,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:34:08,434 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:34:08,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2024-11-13 13:34:09,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:09,228 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-11-13 13:34:09,236 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:34:09,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:34:09,365 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 [2024-11-13 13:34:09,704 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2024-11-13 13:34:10,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2024-11-13 13:34:11,273 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2024-11-13 13:34:12,781 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:12,782 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 74 [2024-11-13 13:34:13,668 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:13,669 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 84 treesize of output 74 [2024-11-13 13:34:14,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 55 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 121 [2024-11-13 13:34:16,405 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:16,406 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 180 treesize of output 164 [2024-11-13 13:34:17,262 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:17,263 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 171 treesize of output 167 [2024-11-13 13:34:17,598 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:17,598 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 182 treesize of output 167 [2024-11-13 13:34:19,434 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:19,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 183 treesize of output 83 [2024-11-13 13:34:20,920 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 490 proven. 102 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-13 13:34:20,920 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:34:22,419 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:34:22,419 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:34:22,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [675860503] [2024-11-13 13:34:22,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [675860503] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:34:22,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:34:22,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [33] total 39 [2024-11-13 13:34:22,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807791743] [2024-11-13 13:34:22,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:34:22,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:34:22,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:34:22,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:34:22,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1280, Unknown=0, NotChecked=0, Total=1482 [2024-11-13 13:34:22,421 INFO L87 Difference]: Start difference. First operand 582 states and 732 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:34:24,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:34:26,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:34:30,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:34:32,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:34:39,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:34:39,096 INFO L93 Difference]: Finished difference Result 1356 states and 1706 transitions. [2024-11-13 13:34:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:34:39,097 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:34:39,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:34:39,102 INFO L225 Difference]: With dead ends: 1356 [2024-11-13 13:34:39,102 INFO L226 Difference]: Without dead ends: 777 [2024-11-13 13:34:39,104 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 282 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 563 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=230, Invalid=1750, Unknown=0, NotChecked=0, Total=1980 [2024-11-13 13:34:39,105 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 92 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1254 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:34:39,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1254 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 787 Invalid, 1 Unknown, 0 Unchecked, 16.0s Time] [2024-11-13 13:34:39,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2024-11-13 13:34:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 752. [2024-11-13 13:34:39,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 752 states, 653 states have (on average 1.2052067381316998) internal successors, (787), 660 states have internal predecessors, (787), 81 states have call successors, (81), 17 states have call predecessors, (81), 17 states have return successors, (81), 74 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-13 13:34:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 949 transitions. [2024-11-13 13:34:39,244 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 949 transitions. Word has length 162 [2024-11-13 13:34:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:34:39,245 INFO L471 AbstractCegarLoop]: Abstraction has 752 states and 949 transitions. [2024-11-13 13:34:39,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:34:39,245 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 949 transitions. [2024-11-13 13:34:39,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:34:39,247 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:34:39,247 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:34:39,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Ended with exit code 0 [2024-11-13 13:34:39,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:34:39,449 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:34:39,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:34:39,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1207423460, now seen corresponding path program 1 times [2024-11-13 13:34:39,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:34:39,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [994276557] [2024-11-13 13:34:39,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:39,451 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 [2024-11-13 13:34:39,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:34:39,456 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:34:39,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2024-11-13 13:34:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:40,267 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-13 13:34:40,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:34:40,291 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 [2024-11-13 13:34:40,591 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 37 treesize of output 30 [2024-11-13 13:34:41,371 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:41,371 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 63 treesize of output 38 [2024-11-13 13:34:41,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:41,700 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 63 treesize of output 38 [2024-11-13 13:34:42,009 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:42,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 96 treesize of output 78 [2024-11-13 13:34:42,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:42,690 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 94 treesize of output 81 [2024-11-13 13:34:42,799 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:42,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 94 treesize of output 81 [2024-11-13 13:34:42,905 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:42,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 81 [2024-11-13 13:34:43,396 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:43,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 95 treesize of output 35 [2024-11-13 13:34:43,534 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 368 proven. 45 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-13 13:34:43,534 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:34:44,072 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:34:44,072 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:34:44,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [994276557] [2024-11-13 13:34:44,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [994276557] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:34:44,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:34:44,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 22 [2024-11-13 13:34:44,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826976422] [2024-11-13 13:34:44,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:34:44,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:34:44,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:34:44,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:34:44,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=378, Unknown=0, NotChecked=0, Total=462 [2024-11-13 13:34:44,074 INFO L87 Difference]: Start difference. First operand 752 states and 949 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:34:47,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:34:47,277 INFO L93 Difference]: Finished difference Result 1588 states and 1997 transitions. [2024-11-13 13:34:47,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:34:47,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:34:47,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:34:47,283 INFO L225 Difference]: With dead ends: 1588 [2024-11-13 13:34:47,284 INFO L226 Difference]: Without dead ends: 839 [2024-11-13 13:34:47,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 301 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=89, Invalid=417, Unknown=0, NotChecked=0, Total=506 [2024-11-13 13:34:47,286 INFO L432 NwaCegarLoop]: 130 mSDtfsCounter, 92 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 410 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:34:47,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 410 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:34:47,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-13 13:34:47,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 835. [2024-11-13 13:34:47,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 710 states have (on average 1.1943661971830986) internal successors, (848), 719 states have internal predecessors, (848), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 90 states have call predecessors, (99), 99 states have call successors, (99) [2024-11-13 13:34:47,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1046 transitions. [2024-11-13 13:34:47,460 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1046 transitions. Word has length 162 [2024-11-13 13:34:47,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:34:47,461 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1046 transitions. [2024-11-13 13:34:47,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:34:47,461 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1046 transitions. [2024-11-13 13:34:47,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:34:47,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:34:47,464 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:34:47,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2024-11-13 13:34:47,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:34:47,664 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:34:47,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:34:47,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1679516391, now seen corresponding path program 1 times [2024-11-13 13:34:47,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:34:47,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [659652278] [2024-11-13 13:34:47,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:34:47,666 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 [2024-11-13 13:34:47,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:34:47,668 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:34:47,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2024-11-13 13:34:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:34:48,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-13 13:34:48,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:34:48,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-11-13 13:34:48,512 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 31 treesize of output 15 [2024-11-13 13:34:48,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 39 [2024-11-13 13:34:49,454 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:49,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 47 [2024-11-13 13:34:49,825 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:49,825 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 47 [2024-11-13 13:34:50,206 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:50,206 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 47 [2024-11-13 13:34:50,601 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:50,602 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 57 [2024-11-13 13:34:51,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 36 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2024-11-13 13:34:52,007 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:52,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 135 treesize of output 116 [2024-11-13 13:34:52,342 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:52,342 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 135 treesize of output 116 [2024-11-13 13:34:52,538 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:34:52,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 141 treesize of output 126 [2024-11-13 13:34:57,884 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 458 proven. 87 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2024-11-13 13:34:57,884 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:34:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:34:58,520 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:34:58,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [659652278] [2024-11-13 13:34:58,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [659652278] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:34:58,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:34:58,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [20] total 23 [2024-11-13 13:34:58,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843341171] [2024-11-13 13:34:58,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:34:58,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:34:58,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:34:58,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:34:58,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=402, Unknown=1, NotChecked=0, Total=506 [2024-11-13 13:34:58,523 INFO L87 Difference]: Start difference. First operand 835 states and 1046 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:35:01,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:35:05,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:35:05,053 INFO L93 Difference]: Finished difference Result 1625 states and 2026 transitions. [2024-11-13 13:35:05,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:35:05,054 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:35:05,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:35:05,059 INFO L225 Difference]: With dead ends: 1625 [2024-11-13 13:35:05,059 INFO L226 Difference]: Without dead ends: 841 [2024-11-13 13:35:05,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 297 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=109, Invalid=442, Unknown=1, NotChecked=0, Total=552 [2024-11-13 13:35:05,062 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 138 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:35:05,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 419 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-13 13:35:05,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-13 13:35:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 815. [2024-11-13 13:35:05,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 693 states have (on average 1.1847041847041848) internal successors, (821), 702 states have internal predecessors, (821), 95 states have call successors, (95), 26 states have call predecessors, (95), 26 states have return successors, (95), 86 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-13 13:35:05,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 1011 transitions. [2024-11-13 13:35:05,239 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 1011 transitions. Word has length 162 [2024-11-13 13:35:05,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:35:05,240 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 1011 transitions. [2024-11-13 13:35:05,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:35:05,240 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 1011 transitions. [2024-11-13 13:35:05,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:35:05,243 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:35:05,243 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:35:05,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Ended with exit code 0 [2024-11-13 13:35:05,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:35:05,444 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:35:05,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:35:05,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1977814048, now seen corresponding path program 1 times [2024-11-13 13:35:05,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:35:05,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591219990] [2024-11-13 13:35:05,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:05,446 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:35:05,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:35:05,448 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:35:05,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2024-11-13 13:35:06,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:06,311 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-13 13:35:06,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:35:06,325 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 1 [2024-11-13 13:35:06,442 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 26 treesize of output 25 [2024-11-13 13:35:06,904 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:06,905 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 33 [2024-11-13 13:35:07,141 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:07,142 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 43 [2024-11-13 13:35:07,526 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:07,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 95 treesize of output 77 [2024-11-13 13:35:08,154 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:08,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 86 [2024-11-13 13:35:08,377 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:08,378 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 105 treesize of output 86 [2024-11-13 13:35:08,635 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:08,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 111 treesize of output 96 [2024-11-13 13:35:13,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:13,208 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 106 treesize of output 46 [2024-11-13 13:35:13,339 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 404 proven. 33 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2024-11-13 13:35:13,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:35:13,817 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:35:13,818 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:35:13,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591219990] [2024-11-13 13:35:13,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591219990] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:35:13,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:35:13,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [17] total 20 [2024-11-13 13:35:13,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498807780] [2024-11-13 13:35:13,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:35:13,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:35:13,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:35:13,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:35:13,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=301, Unknown=1, NotChecked=0, Total=380 [2024-11-13 13:35:13,820 INFO L87 Difference]: Start difference. First operand 815 states and 1011 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:35:15,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:35:19,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:35:19,389 INFO L93 Difference]: Finished difference Result 1632 states and 2018 transitions. [2024-11-13 13:35:19,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:35:19,390 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:35:19,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:35:19,395 INFO L225 Difference]: With dead ends: 1632 [2024-11-13 13:35:19,396 INFO L226 Difference]: Without dead ends: 856 [2024-11-13 13:35:19,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 302 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=83, Invalid=336, Unknown=1, NotChecked=0, Total=420 [2024-11-13 13:35:19,399 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 150 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:35:19,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 456 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 5.4s Time] [2024-11-13 13:35:19,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-13 13:35:19,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 823. [2024-11-13 13:35:19,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 698 states have (on average 1.180515759312321) internal successors, (824), 707 states have internal predecessors, (824), 97 states have call successors, (97), 27 states have call predecessors, (97), 27 states have return successors, (97), 88 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-13 13:35:19,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1018 transitions. [2024-11-13 13:35:19,571 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1018 transitions. Word has length 162 [2024-11-13 13:35:19,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:35:19,571 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1018 transitions. [2024-11-13 13:35:19,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 5 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:35:19,572 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1018 transitions. [2024-11-13 13:35:19,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-13 13:35:19,573 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:35:19,573 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:35:19,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2024-11-13 13:35:19,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:35:19,774 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:35:19,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:35:19,777 INFO L85 PathProgramCache]: Analyzing trace with hash 697950370, now seen corresponding path program 1 times [2024-11-13 13:35:19,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:35:19,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2138447607] [2024-11-13 13:35:19,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:19,778 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:35:19,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:35:19,780 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:35:19,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2024-11-13 13:35:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:20,663 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-13 13:35:20,669 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:35:20,677 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 [2024-11-13 13:35:20,790 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 [2024-11-13 13:35:20,981 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 38 [2024-11-13 13:35:21,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:21,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 62 treesize of output 46 [2024-11-13 13:35:22,026 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:22,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 57 treesize of output 56 [2024-11-13 13:35:22,527 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:22,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 90 treesize of output 54 [2024-11-13 13:35:22,893 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:22,893 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 76 treesize of output 72 [2024-11-13 13:35:23,179 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:23,179 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 86 treesize of output 76 [2024-11-13 13:35:23,305 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:23,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 97 treesize of output 76 [2024-11-13 13:35:23,855 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:23,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 98 treesize of output 44 [2024-11-13 13:35:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 472 proven. 39 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-13 13:35:24,228 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:35:25,154 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:35:25,155 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:35:25,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2138447607] [2024-11-13 13:35:25,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2138447607] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:35:25,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:35:25,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 27 [2024-11-13 13:35:25,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183684012] [2024-11-13 13:35:25,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:35:25,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:35:25,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:35:25,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:35:25,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2024-11-13 13:35:25,157 INFO L87 Difference]: Start difference. First operand 823 states and 1018 transitions. Second operand has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:35:27,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:35:31,083 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:35:32,470 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:35:34,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:35:40,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:35:40,094 INFO L93 Difference]: Finished difference Result 1633 states and 2014 transitions. [2024-11-13 13:35:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:35:40,096 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 162 [2024-11-13 13:35:40,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:35:40,099 INFO L225 Difference]: With dead ends: 1633 [2024-11-13 13:35:40,099 INFO L226 Difference]: Without dead ends: 849 [2024-11-13 13:35:40,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 296 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=130, Invalid=926, Unknown=0, NotChecked=0, Total=1056 [2024-11-13 13:35:40,101 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 85 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:35:40,101 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1352 Invalid, 788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2024-11-13 13:35:40,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-13 13:35:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 702. [2024-11-13 13:35:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 702 states, 595 states have (on average 1.1764705882352942) internal successors, (700), 602 states have internal predecessors, (700), 82 states have call successors, (82), 24 states have call predecessors, (82), 24 states have return successors, (82), 75 states have call predecessors, (82), 82 states have call successors, (82) [2024-11-13 13:35:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 702 states and 864 transitions. [2024-11-13 13:35:40,258 INFO L78 Accepts]: Start accepts. Automaton has 702 states and 864 transitions. Word has length 162 [2024-11-13 13:35:40,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:35:40,258 INFO L471 AbstractCegarLoop]: Abstraction has 702 states and 864 transitions. [2024-11-13 13:35:40,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.0) internal successors, (70), 10 states have internal predecessors, (70), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:35:40,259 INFO L276 IsEmpty]: Start isEmpty. Operand 702 states and 864 transitions. [2024-11-13 13:35:40,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-13 13:35:40,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:35:40,261 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:35:40,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Ended with exit code 0 [2024-11-13 13:35:40,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:35:40,462 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:35:40,462 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:35:40,462 INFO L85 PathProgramCache]: Analyzing trace with hash 2117797663, now seen corresponding path program 1 times [2024-11-13 13:35:40,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:35:40,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692385901] [2024-11-13 13:35:40,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:40,463 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 [2024-11-13 13:35:40,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:35:40,469 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:35:40,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2024-11-13 13:35:41,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:41,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-13 13:35:41,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:35:41,824 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 [2024-11-13 13:35:42,399 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:42,399 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 125 treesize of output 67 [2024-11-13 13:35:42,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:42,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 80 [2024-11-13 13:35:43,282 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:43,283 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 93 [2024-11-13 13:35:43,892 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:43,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 155 treesize of output 106 [2024-11-13 13:35:44,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:44,629 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 109 [2024-11-13 13:35:45,201 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:45,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 109 [2024-11-13 13:35:45,778 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:45,778 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 109 [2024-11-13 13:35:46,435 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:46,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 199 treesize of output 109 [2024-11-13 13:35:46,589 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:46,589 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 109 [2024-11-13 13:35:46,689 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:46,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 109 [2024-11-13 13:35:46,847 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:46,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 228 treesize of output 150 [2024-11-13 13:35:47,369 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:47,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 436 treesize of output 148 [2024-11-13 13:35:47,694 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 254 proven. 282 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-11-13 13:35:47,694 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:35:48,379 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:35:48,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692385901] [2024-11-13 13:35:48,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692385901] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:35:48,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736558756] [2024-11-13 13:35:48,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:35:48,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:35:48,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:35:48,381 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:35:48,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-13 13:35:50,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:35:50,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 49 conjuncts are in the unsatisfiable core [2024-11-13 13:35:50,650 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:35:53,409 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:53,409 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 125 treesize of output 67 [2024-11-13 13:35:53,782 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:53,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 135 treesize of output 80 [2024-11-13 13:35:54,268 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:54,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 93 [2024-11-13 13:35:54,835 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:54,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 160 treesize of output 96 [2024-11-13 13:35:55,322 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:55,322 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 155 treesize of output 106 [2024-11-13 13:35:56,188 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:56,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 109 [2024-11-13 13:35:56,790 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:56,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 170 treesize of output 109 [2024-11-13 13:35:57,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:57,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 201 treesize of output 125 [2024-11-13 13:35:57,952 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:57,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 183 treesize of output 128 [2024-11-13 13:35:58,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:58,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 183 treesize of output 128 [2024-11-13 13:35:58,266 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:58,267 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 241 treesize of output 169 [2024-11-13 13:35:59,086 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:35:59,086 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 449 treesize of output 151 [2024-11-13 13:35:59,136 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 286 proven. 291 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-13 13:35:59,136 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:35:59,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736558756] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:35:59,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-13 13:35:59,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23] total 31 [2024-11-13 13:35:59,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099721300] [2024-11-13 13:35:59,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-13 13:35:59,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-13 13:35:59,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:35:59,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-13 13:35:59,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=1092, Unknown=0, NotChecked=0, Total=1260 [2024-11-13 13:35:59,434 INFO L87 Difference]: Start difference. First operand 702 states and 864 transitions. Second operand has 32 states, 30 states have (on average 4.1) internal successors, (123), 28 states have internal predecessors, (123), 8 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (29), 7 states have call predecessors, (29), 8 states have call successors, (29) [2024-11-13 13:36:01,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:36:03,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:36:05,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:36:06,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:36:08,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:36:11,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:36:12,458 WARN L539 Checker$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 [] [2024-11-13 13:36:13,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:36:15,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:36:17,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:36:20,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:36:54,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:36:54,069 INFO L93 Difference]: Finished difference Result 2319 states and 2821 transitions. [2024-11-13 13:36:54,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2024-11-13 13:36:54,070 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 4.1) internal successors, (123), 28 states have internal predecessors, (123), 8 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (29), 7 states have call predecessors, (29), 8 states have call successors, (29) Word has length 163 [2024-11-13 13:36:54,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:36:54,076 INFO L225 Difference]: With dead ends: 2319 [2024-11-13 13:36:54,076 INFO L226 Difference]: Without dead ends: 1656 [2024-11-13 13:36:54,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 348 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1603 ImplicationChecksByTransitivity, 15.2s TimeCoverageRelationStatistics Valid=1080, Invalid=5400, Unknown=0, NotChecked=0, Total=6480 [2024-11-13 13:36:54,078 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 564 mSDsluCounter, 1603 mSDsCounter, 0 mSdLazyCounter, 4199 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 4319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 4199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:36:54,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1745 Invalid, 4319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 4199 Invalid, 0 Unknown, 0 Unchecked, 44.4s Time] [2024-11-13 13:36:54,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2024-11-13 13:36:54,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 756. [2024-11-13 13:36:54,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 628 states have (on average 1.1671974522292994) internal successors, (733), 636 states have internal predecessors, (733), 97 states have call successors, (97), 30 states have call predecessors, (97), 30 states have return successors, (97), 89 states have call predecessors, (97), 97 states have call successors, (97) [2024-11-13 13:36:54,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 927 transitions. [2024-11-13 13:36:54,301 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 927 transitions. Word has length 163 [2024-11-13 13:36:54,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:36:54,302 INFO L471 AbstractCegarLoop]: Abstraction has 756 states and 927 transitions. [2024-11-13 13:36:54,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 4.1) internal successors, (123), 28 states have internal predecessors, (123), 8 states have call successors, (28), 8 states have call predecessors, (28), 9 states have return successors, (29), 7 states have call predecessors, (29), 8 states have call successors, (29) [2024-11-13 13:36:54,302 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 927 transitions. [2024-11-13 13:36:54,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-13 13:36:54,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:36:54,305 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:36:54,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-11-13 13:36:54,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Ended with exit code 0 [2024-11-13 13:36:54,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:36:54,705 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:36:54,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:54,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1689122527, now seen corresponding path program 1 times [2024-11-13 13:36:54,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:36:54,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62069859] [2024-11-13 13:36:54,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:54,707 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 [2024-11-13 13:36:54,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:36:54,709 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:36:54,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2024-11-13 13:36:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:55,438 INFO L255 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:36:55,442 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:36:55,532 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-13 13:36:55,533 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:36:55,533 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:36:55,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62069859] [2024-11-13 13:36:55,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62069859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:36:55,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:36:55,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 13:36:55,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982258968] [2024-11-13 13:36:55,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:36:55,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:36:55,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:36:55,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:36:55,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:36:55,535 INFO L87 Difference]: Start difference. First operand 756 states and 927 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-13 13:36:56,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:36:56,154 INFO L93 Difference]: Finished difference Result 1177 states and 1429 transitions. [2024-11-13 13:36:56,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:36:56,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) Word has length 163 [2024-11-13 13:36:56,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:36:56,163 INFO L225 Difference]: With dead ends: 1177 [2024-11-13 13:36:56,163 INFO L226 Difference]: Without dead ends: 436 [2024-11-13 13:36:56,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:36:56,165 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1 mSDsluCounter, 449 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:36:56,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 575 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 13:36:56,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2024-11-13 13:36:56,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 331. [2024-11-13 13:36:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 267 states have (on average 1.146067415730337) internal successors, (306), 269 states have internal predecessors, (306), 45 states have call successors, (45), 18 states have call predecessors, (45), 18 states have return successors, (45), 43 states have call predecessors, (45), 45 states have call successors, (45) [2024-11-13 13:36:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 396 transitions. [2024-11-13 13:36:56,263 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 396 transitions. Word has length 163 [2024-11-13 13:36:56,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:36:56,263 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 396 transitions. [2024-11-13 13:36:56,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 2 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-13 13:36:56,263 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 396 transitions. [2024-11-13 13:36:56,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-13 13:36:56,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:36:56,265 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:36:56,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2024-11-13 13:36:56,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:36:56,466 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:36:56,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:36:56,467 INFO L85 PathProgramCache]: Analyzing trace with hash 799765943, now seen corresponding path program 1 times [2024-11-13 13:36:56,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:36:56,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1679781814] [2024-11-13 13:36:56,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:36:56,467 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:36:56,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:36:56,469 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:36:56,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2024-11-13 13:36:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:36:57,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-13 13:36:57,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:36:57,521 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 [2024-11-13 13:36:57,807 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:36:57,807 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 75 treesize of output 47 [2024-11-13 13:36:57,961 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:36:57,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 53 [2024-11-13 13:36:58,019 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:36:58,019 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 53 [2024-11-13 13:36:58,078 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:36:58,078 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 63 [2024-11-13 13:37:02,875 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:37:02,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 108 treesize of output 44 [2024-11-13 13:37:03,008 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-13 13:37:03,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:37:03,008 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:37:03,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1679781814] [2024-11-13 13:37:03,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1679781814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:37:03,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:37:03,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-13 13:37:03,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385256296] [2024-11-13 13:37:03,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:37:03,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 13:37:03,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:37:03,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 13:37:03,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=171, Unknown=1, NotChecked=0, Total=210 [2024-11-13 13:37:03,011 INFO L87 Difference]: Start difference. First operand 331 states and 396 transitions. Second operand has 15 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-13 13:37:04,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:37:07,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:37:08,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:37:10,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:37:11,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:37:17,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:21,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:25,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:29,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:33,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:37,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:41,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:45,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:49,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:53,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:37:57,754 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:38:01,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:38:05,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:38:09,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:38:13,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:38:17,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:38:22,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:22,478 INFO L93 Difference]: Finished difference Result 504 states and 590 transitions. [2024-11-13 13:38:22,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-13 13:38:22,479 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 164 [2024-11-13 13:38:22,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:22,482 INFO L225 Difference]: With dead ends: 504 [2024-11-13 13:38:22,482 INFO L226 Difference]: Without dead ends: 502 [2024-11-13 13:38:22,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=95, Invalid=456, Unknown=1, NotChecked=0, Total=552 [2024-11-13 13:38:22,483 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 143 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 1394 mSolverCounterSat, 26 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 78.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 839 SdHoareTripleChecker+Invalid, 1436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1394 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 78.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:22,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 839 Invalid, 1436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1394 Invalid, 16 Unknown, 0 Unchecked, 78.8s Time] [2024-11-13 13:38:22,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2024-11-13 13:38:22,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 456. [2024-11-13 13:38:22,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 354 states have (on average 1.1242937853107344) internal successors, (398), 358 states have internal predecessors, (398), 70 states have call successors, (70), 31 states have call predecessors, (70), 31 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-13 13:38:22,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 538 transitions. [2024-11-13 13:38:22,668 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 538 transitions. Word has length 164 [2024-11-13 13:38:22,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:22,669 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 538 transitions. [2024-11-13 13:38:22,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 6.0) internal successors, (78), 14 states have internal predecessors, (78), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-13 13:38:22,669 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 538 transitions. [2024-11-13 13:38:22,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-13 13:38:22,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:22,671 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:38:22,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2024-11-13 13:38:22,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:38:22,872 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:22,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash 801612985, now seen corresponding path program 1 times [2024-11-13 13:38:22,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:38:22,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [677777919] [2024-11-13 13:38:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:22,873 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 [2024-11-13 13:38:22,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:38:22,875 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:38:22,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2024-11-13 13:38:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:23,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-13 13:38:23,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:38:23,837 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 [2024-11-13 13:38:23,946 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 [2024-11-13 13:38:24,011 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 [2024-11-13 13:38:24,243 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:24,243 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 41 treesize of output 28 [2024-11-13 13:38:24,383 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:24,384 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 41 treesize of output 28 [2024-11-13 13:38:24,542 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:24,542 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 72 treesize of output 39 [2024-11-13 13:38:24,656 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:24,656 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 42 [2024-11-13 13:38:24,700 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:24,700 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 58 treesize of output 42 [2024-11-13 13:38:24,745 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:24,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 59 treesize of output 62 [2024-11-13 13:38:29,459 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:29,460 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 104 treesize of output 44 [2024-11-13 13:38:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 432 proven. 27 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2024-11-13 13:38:29,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:38:29,954 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2024-11-13 13:38:29,954 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:38:29,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [677777919] [2024-11-13 13:38:29,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [677777919] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 13:38:29,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:38:29,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 12 [2024-11-13 13:38:29,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096130963] [2024-11-13 13:38:29,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:38:29,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:38:29,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:38:29,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:38:29,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=102, Unknown=1, NotChecked=0, Total=132 [2024-11-13 13:38:29,956 INFO L87 Difference]: Start difference. First operand 456 states and 538 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:38:31,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-13 13:38:34,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:38:34,330 INFO L93 Difference]: Finished difference Result 796 states and 940 transitions. [2024-11-13 13:38:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:38:34,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 164 [2024-11-13 13:38:34,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:38:34,333 INFO L225 Difference]: With dead ends: 796 [2024-11-13 13:38:34,333 INFO L226 Difference]: Without dead ends: 456 [2024-11-13 13:38:34,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 328 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=37, Invalid=144, Unknown=1, NotChecked=0, Total=182 [2024-11-13 13:38:34,334 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 77 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:38:34,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 462 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-13 13:38:34,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2024-11-13 13:38:34,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2024-11-13 13:38:34,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 354 states have (on average 1.11864406779661) internal successors, (396), 358 states have internal predecessors, (396), 70 states have call successors, (70), 31 states have call predecessors, (70), 31 states have return successors, (70), 66 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-13 13:38:34,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 536 transitions. [2024-11-13 13:38:34,512 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 536 transitions. Word has length 164 [2024-11-13 13:38:34,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:38:34,512 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 536 transitions. [2024-11-13 13:38:34,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 1 states have call successors, (19), 1 states have call predecessors, (19), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2024-11-13 13:38:34,512 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 536 transitions. [2024-11-13 13:38:34,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-13 13:38:34,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:38:34,514 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:38:34,530 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2024-11-13 13:38:34,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 13:38:34,714 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:38:34,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:38:34,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1718346949, now seen corresponding path program 1 times [2024-11-13 13:38:34,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 13:38:34,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479099825] [2024-11-13 13:38:34,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:38:34,715 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 [2024-11-13 13:38:34,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 13:38:34,717 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -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) [2024-11-13 13:38:34,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1330295b-0a90-48b1-b18e-b186a97de183/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2024-11-13 13:38:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:38:35,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-13 13:38:35,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:38:35,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 21 [2024-11-13 13:38:36,891 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:36,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 77 [2024-11-13 13:38:37,578 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:37,578 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 40 [2024-11-13 13:38:38,236 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:38,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 50 [2024-11-13 13:38:39,051 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:39,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 55 treesize of output 63 [2024-11-13 13:38:40,155 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:40,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-13 13:38:40,836 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:40,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-13 13:38:41,534 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:41,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 70 treesize of output 66 [2024-11-13 13:38:42,309 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:42,309 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 176 treesize of output 107 [2024-11-13 13:38:50,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:50,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 147 treesize of output 98 [2024-11-13 13:38:53,506 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:53,507 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 147 treesize of output 98 [2024-11-13 13:38:56,414 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:38:56,415 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 148 treesize of output 118 [2024-11-13 13:39:22,604 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-13 13:39:22,604 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 279 treesize of output 111 [2024-11-13 13:39:23,996 INFO L134 CoverageAnalysis]: Checked inductivity of 684 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-13 13:39:23,997 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:39:23,997 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 13:39:23,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479099825] [2024-11-13 13:39:23,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479099825] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:39:23,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:39:23,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-13 13:39:23,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920310065] [2024-11-13 13:39:23,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:39:23,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:39:23,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 13:39:23,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:39:23,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=132, Unknown=2, NotChecked=0, Total=182 [2024-11-13 13:39:23,999 INFO L87 Difference]: Start difference. First operand 456 states and 536 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 13 states have internal predecessors, (84), 5 states have call successors, (19), 5 states have call predecessors, (19), 5 states have return successors, (19), 5 states have call predecessors, (19), 5 states have call successors, (19) [2024-11-13 13:39:25,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:27,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:30,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:31,827 WARN L539 Checker$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] [2024-11-13 13:39:36,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:38,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:39,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:42,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:45,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:46,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:49,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:39:51,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:12,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:17,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:21,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:25,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:29,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:34,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:38,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:42,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:47,167 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:51,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:40:55,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:00,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:04,713 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:09,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:14,223 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:19,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:24,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:28,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:32,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:37,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.47s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:41:58,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:02,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:08,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:12,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:18,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:22,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:27,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:29,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:34,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:42:39,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:05,917 WARN L286 SmtUtils]: Spent 14.85s on a formula simplification. DAG size of input: 89 DAG size of output: 89 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:43:14,898 WARN L286 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 89 DAG size of output: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-13 13:43:20,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result VALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:24,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:28,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:32,805 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:36,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:40,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:45,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:49,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:54,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:43:58,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:44:02,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result VALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:44:06,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:44:11,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-13 13:44:15,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]