./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64487a3fc6d0bb9c63963975f2a88f7204d26acaec706a494cf6a9d1aeef08e8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:05:23,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:05:23,208 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:05:23,230 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:05:23,231 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:05:23,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:05:23,309 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:05:23,310 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:05:23,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:05:23,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:05:23,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:05:23,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:05:23,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:05:23,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:05:23,314 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:05:23,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:05:23,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:05:23,315 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:05:23,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:05:23,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:05:23,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:05:23,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:05:23,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:05:23,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:05:23,317 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:05:23,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:05:23,318 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:05:23,318 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:05:23,318 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:05:23,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:05:23,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:05:23,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:05:23,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:23,321 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:05:23,321 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:05:23,321 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:05:23,321 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:05:23,322 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:23,322 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:05:23,322 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:05:23,322 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:05:23,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:05:23,323 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:05:23,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:05:23,323 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:05:23,323 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:05:23,323 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:05:23,323 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:05:23,324 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_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64487a3fc6d0bb9c63963975f2a88f7204d26acaec706a494cf6a9d1aeef08e8 [2024-11-24 01:05:23,862 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:05:23,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:05:23,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:05:23,894 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:05:23,895 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:05:23,897 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i [2024-11-24 01:05:27,893 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data/4aeed595c/c14107d5eba84d9fa98c2b18e0300058/FLAGab6bd28ed [2024-11-24 01:05:28,306 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:05:28,308 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i [2024-11-24 01:05:28,318 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data/4aeed595c/c14107d5eba84d9fa98c2b18e0300058/FLAGab6bd28ed [2024-11-24 01:05:28,340 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data/4aeed595c/c14107d5eba84d9fa98c2b18e0300058 [2024-11-24 01:05:28,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:05:28,347 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:05:28,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:05:28,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:05:28,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:05:28,358 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19f29e20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28, skipping insertion in model container [2024-11-24 01:05:28,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,384 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:05:28,599 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_55070cc2-f597-42a1-adda-c207daaae0ac/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i[913,926] [2024-11-24 01:05:28,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:05:28,714 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:05:28,733 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_55070cc2-f597-42a1-adda-c207daaae0ac/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i[913,926] [2024-11-24 01:05:28,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:05:28,813 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:05:28,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28 WrapperNode [2024-11-24 01:05:28,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:05:28,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:05:28,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:05:28,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:05:28,835 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,853 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,905 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2024-11-24 01:05:28,906 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:05:28,906 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:05:28,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:05:28,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:05:28,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,927 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,932 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,959 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:05:28,959 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,968 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,973 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,984 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,985 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:28,991 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:05:28,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:05:28,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:05:28,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:05:28,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (1/1) ... [2024-11-24 01:05:29,012 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:29,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:29,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:05:29,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:05:29,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:05:29,096 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:05:29,096 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:05:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:05:29,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:05:29,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:05:29,196 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:05:29,198 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:05:29,527 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-24 01:05:29,527 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:05:29,541 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:05:29,541 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:05:29,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:05:29 BoogieIcfgContainer [2024-11-24 01:05:29,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:05:29,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:05:29,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:05:29,552 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:05:29,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:05:28" (1/3) ... [2024-11-24 01:05:29,553 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd077cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:05:29, skipping insertion in model container [2024-11-24 01:05:29,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:28" (2/3) ... [2024-11-24 01:05:29,554 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd077cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:05:29, skipping insertion in model container [2024-11-24 01:05:29,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:05:29" (3/3) ... [2024-11-24 01:05:29,556 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-41.i [2024-11-24 01:05:29,577 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:05:29,579 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-41.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:05:29,665 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:05:29,688 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;@509c8d0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:05:29,688 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:05:29,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:05:29,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:05:29,709 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:29,711 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:29,712 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:29,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:29,721 INFO L85 PathProgramCache]: Analyzing trace with hash 20836915, now seen corresponding path program 1 times [2024-11-24 01:05:29,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:29,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867324350] [2024-11-24 01:05:29,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:29,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:30,115 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-24 01:05:30,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:05:30,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867324350] [2024-11-24 01:05:30,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867324350] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:05:30,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056845097] [2024-11-24 01:05:30,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:30,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:30,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:30,123 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:05:30,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:05:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:30,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:05:30,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:30,433 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-11-24 01:05:30,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:05:30,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056845097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:05:30,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:05:30,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:05:30,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405902920] [2024-11-24 01:05:30,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:05:30,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:05:30,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:05:30,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:05:30,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:05:30,483 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:05:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:30,523 INFO L93 Difference]: Finished difference Result 89 states and 148 transitions. [2024-11-24 01:05:30,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:05:30,528 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2024-11-24 01:05:30,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:30,540 INFO L225 Difference]: With dead ends: 89 [2024-11-24 01:05:30,540 INFO L226 Difference]: Without dead ends: 44 [2024-11-24 01:05:30,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:05:30,552 INFO L435 NwaCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:30,555 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:05:30,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-24 01:05:30,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-24 01:05:30,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:05:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2024-11-24 01:05:30,618 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 92 [2024-11-24 01:05:30,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:30,619 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2024-11-24 01:05:30,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:05:30,619 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2024-11-24 01:05:30,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:05:30,623 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:30,624 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:30,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:05:30,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:05:30,825 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:30,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:30,826 INFO L85 PathProgramCache]: Analyzing trace with hash -606240841, now seen corresponding path program 1 times [2024-11-24 01:05:30,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:05:30,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619584455] [2024-11-24 01:05:30,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:30,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:05:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:05:31,080 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:05:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:05:31,284 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:05:31,284 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:05:31,286 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:05:31,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:05:31,297 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 01:05:31,411 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:05:31,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:05:31 BoogieIcfgContainer [2024-11-24 01:05:31,417 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:05:31,418 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:05:31,418 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:05:31,418 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:05:31,419 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:05:29" (3/4) ... [2024-11-24 01:05:31,422 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:05:31,423 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:05:31,424 INFO L158 Benchmark]: Toolchain (without parser) took 3077.59ms. Allocated memory is still 142.6MB. Free memory was 98.3MB in the beginning and 79.4MB in the end (delta: 18.9MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2024-11-24 01:05:31,424 INFO L158 Benchmark]: CDTParser took 2.74ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:05:31,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 466.05ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 85.5MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:05:31,425 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.64ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:05:31,426 INFO L158 Benchmark]: Boogie Preprocessor took 88.38ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 81.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:05:31,426 INFO L158 Benchmark]: RCFGBuilder took 546.61ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 66.1MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:05:31,426 INFO L158 Benchmark]: TraceAbstraction took 1871.91ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 79.4MB in the end (delta: -13.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:05:31,427 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 142.6MB. Free memory was 79.4MB in the beginning and 79.4MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:05:31,429 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.74ms. Allocated memory is still 167.8MB. Free memory is still 103.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 466.05ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 85.5MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.64ms. Allocated memory is still 142.6MB. Free memory was 85.5MB in the beginning and 83.4MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.38ms. Allocated memory is still 142.6MB. Free memory was 83.4MB in the beginning and 81.0MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 546.61ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 66.1MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1871.91ms. Allocated memory is still 142.6MB. Free memory was 65.5MB in the beginning and 79.4MB in the end (delta: -13.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 142.6MB. Free memory was 79.4MB in the beginning and 79.4MB in the end (delta: 36.9kB). 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 someBinaryArithmeticDOUBLEoperation at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 42, overapproximation of someBinaryDOUBLEComparisonOperation at line 95, overapproximation of someBinaryDOUBLEComparisonOperation at line 82. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = -16; [L23] unsigned char var_1_5 = 0; [L24] signed char var_1_6 = -8; [L25] signed char var_1_7 = 5; [L26] unsigned short int var_1_8 = 2; [L27] unsigned char var_1_11 = 0; [L28] double var_1_12 = 8.5; [L29] double var_1_13 = 999999999999.6; [L30] signed long int var_1_14 = 10; [L31] signed char var_1_15 = -1; [L32] unsigned char var_1_16 = 16; [L33] unsigned char var_1_17 = 64; [L34] signed char last_1_var_1_1 = -16; VAL [isInitial=0, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=0, var_1_6=-8, var_1_7=5, var_1_8=2] [L99] isInitial = 1 [L100] FCALL initially() [L102] CALL updateLastVariables() [L92] last_1_var_1_1 = var_1_1 VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=0, var_1_6=-8, var_1_7=5, var_1_8=2] [L102] RET updateLastVariables() [L103] CALL updateVariables() [L69] var_1_5 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_6=-8, var_1_7=5, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_6=-8, var_1_7=5, var_1_8=2] [L70] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_6=-8, var_1_7=5, var_1_8=2] [L71] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=-8, var_1_7=5, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=-8, var_1_7=5, var_1_8=2] [L71] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=-8, var_1_7=5, var_1_8=2] [L72] var_1_6 = __VERIFIER_nondet_char() [L73] CALL assume_abort_if_not(var_1_6 >= -31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=5, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=5, var_1_8=2] [L73] RET assume_abort_if_not(var_1_6 >= -31) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=5, var_1_8=2] [L74] CALL assume_abort_if_not(var_1_6 <= 31) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=5, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=5, var_1_8=2] [L74] RET assume_abort_if_not(var_1_6 <= 31) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=5, var_1_8=2] [L75] var_1_7 = __VERIFIER_nondet_char() [L76] CALL assume_abort_if_not(var_1_7 >= -63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L76] RET assume_abort_if_not(var_1_7 >= -63) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L77] CALL assume_abort_if_not(var_1_7 <= 63) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L77] RET assume_abort_if_not(var_1_7 <= 63) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L78] var_1_11 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L79] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_1=-16, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L80] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L80] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_13=4999999999998/5, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L81] var_1_13 = __VERIFIER_nondet_double() [L82] CALL assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L82] RET assume_abort_if_not((var_1_13 >= 0.0F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=-1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L83] var_1_15 = __VERIFIER_nondet_char() [L84] CALL assume_abort_if_not(var_1_15 >= -128) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L84] RET assume_abort_if_not(var_1_15 >= -128) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L85] CALL assume_abort_if_not(var_1_15 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L85] RET assume_abort_if_not(var_1_15 <= 127) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L86] CALL assume_abort_if_not(var_1_15 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L86] RET assume_abort_if_not(var_1_15 != 0) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=64, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L87] var_1_17 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_17 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L88] RET assume_abort_if_not(var_1_17 >= 0) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L89] CALL assume_abort_if_not(var_1_17 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=1, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=1, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L89] RET assume_abort_if_not(var_1_17 <= 254) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=16, var_1_17=1, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L103] RET updateVariables() [L104] CALL step() [L38] COND TRUE var_1_5 && (last_1_var_1_1 <= last_1_var_1_1) [L39] var_1_16 = var_1_17 VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_12=17/2, var_1_14=10, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L41] var_1_12 = (var_1_13 - 8.3) [L42] unsigned char stepLocal_1 = var_1_13 >= var_1_12; VAL [isInitial=1, last_1_var_1_1=-16, stepLocal_1=0, var_1_11=0, var_1_14=10, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L43] COND FALSE !(var_1_5 && stepLocal_1) [L46] var_1_14 = var_1_15 VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L48] COND TRUE \read(var_1_5) [L49] var_1_8 = (var_1_16 + var_1_16) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L57] unsigned long int stepLocal_0 = (var_1_8 & 0u) * var_1_16; VAL [isInitial=1, last_1_var_1_1=-16, stepLocal_0=0, var_1_11=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=-16, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L58] COND FALSE !(stepLocal_0 > var_1_8) [L65] var_1_1 = var_1_6 VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=31, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L104] RET step() [L105] CALL, EXPR property() [L95-L96] return (((((((var_1_8 & 0u) * var_1_16) > var_1_8) ? (var_1_5 ? (var_1_1 == ((signed char) ((16 + var_1_6) + var_1_7))) : (var_1_1 == ((signed char) ((((var_1_6) < 0 ) ? -(var_1_6) : (var_1_6)))))) : (var_1_1 == ((signed char) var_1_6))) && (var_1_5 ? (var_1_8 == ((unsigned short int) (var_1_16 + var_1_16))) : (((var_1_16 > var_1_14) || var_1_11) ? (var_1_8 == ((unsigned short int) var_1_16)) : (var_1_8 == ((unsigned short int) var_1_16))))) && (var_1_12 == ((double) (var_1_13 - 8.3)))) && ((var_1_5 && (var_1_13 >= var_1_12)) ? (var_1_14 == ((signed long int) var_1_16)) : (var_1_14 == ((signed long int) var_1_15)))) && ((var_1_5 && (last_1_var_1_1 <= last_1_var_1_1)) ? (var_1_16 == ((unsigned char) var_1_17)) : 1) ; VAL [\result=0, isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=31, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=31, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=-16, var_1_11=0, var_1_14=1, var_1_15=1, var_1_16=1, var_1_17=1, var_1_1=31, var_1_5=1, var_1_6=31, var_1_7=-63, var_1_8=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 63 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 SizeOfPredicates, 0 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 702/728 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 01:05:31,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 64487a3fc6d0bb9c63963975f2a88f7204d26acaec706a494cf6a9d1aeef08e8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:05:34,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:05:35,102 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:05:35,122 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:05:35,122 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:05:35,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:05:35,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:05:35,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:05:35,161 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:05:35,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:05:35,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:05:35,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:05:35,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:05:35,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:05:35,163 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:05:35,163 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:05:35,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:05:35,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:05:35,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:05:35,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:05:35,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:05:35,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:05:35,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:05:35,164 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:05:35,164 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:05:35,165 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:05:35,165 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:05:35,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:05:35,165 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:05:35,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:05:35,166 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:05:35,166 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:05:35,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:05:35,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:05:35,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:35,167 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:05:35,167 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:05:35,167 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:05:35,167 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:05:35,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:35,167 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:05:35,168 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:05:35,168 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:05:35,168 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:05:35,168 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:05:35,168 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:05:35,168 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:05:35,169 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:05:35,169 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:05:35,169 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:05:35,169 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_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64487a3fc6d0bb9c63963975f2a88f7204d26acaec706a494cf6a9d1aeef08e8 [2024-11-24 01:05:35,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:05:35,617 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:05:35,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:05:35,624 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:05:35,628 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:05:35,630 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i [2024-11-24 01:05:39,802 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data/6c22ad74f/4d3639236cfe4a9fa78fda25a68a47df/FLAG750e5cf05 [2024-11-24 01:05:40,185 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:05:40,187 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i [2024-11-24 01:05:40,202 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data/6c22ad74f/4d3639236cfe4a9fa78fda25a68a47df/FLAG750e5cf05 [2024-11-24 01:05:40,418 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/data/6c22ad74f/4d3639236cfe4a9fa78fda25a68a47df [2024-11-24 01:05:40,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:05:40,428 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:05:40,430 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:05:40,433 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:05:40,442 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:05:40,445 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:40,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56a71f2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40, skipping insertion in model container [2024-11-24 01:05:40,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:40,491 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:05:40,747 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_55070cc2-f597-42a1-adda-c207daaae0ac/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i[913,926] [2024-11-24 01:05:40,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:05:40,870 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:05:40,893 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_55070cc2-f597-42a1-adda-c207daaae0ac/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-41.i[913,926] [2024-11-24 01:05:40,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:05:40,960 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:05:40,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40 WrapperNode [2024-11-24 01:05:40,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:05:40,963 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:05:40,964 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:05:40,964 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:05:40,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:40,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,044 INFO L138 Inliner]: procedures = 27, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-24 01:05:41,051 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:05:41,052 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:05:41,052 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:05:41,052 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:05:41,065 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,070 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,096 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:05:41,096 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,113 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,115 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,123 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,130 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:05:41,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:05:41,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:05:41,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:05:41,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (1/1) ... [2024-11-24 01:05:41,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:05:41,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:05:41,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:05:41,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:05:41,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:05:41,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:05:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:05:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:05:41,254 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:05:41,254 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:05:41,387 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:05:41,390 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:05:42,343 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-24 01:05:42,343 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:05:42,357 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:05:42,357 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:05:42,358 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:05:42 BoogieIcfgContainer [2024-11-24 01:05:42,358 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:05:42,361 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:05:42,362 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:05:42,369 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:05:42,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:05:40" (1/3) ... [2024-11-24 01:05:42,371 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a454649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:05:42, skipping insertion in model container [2024-11-24 01:05:42,373 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:05:40" (2/3) ... [2024-11-24 01:05:42,374 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a454649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:05:42, skipping insertion in model container [2024-11-24 01:05:42,374 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:05:42" (3/3) ... [2024-11-24 01:05:42,376 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-41.i [2024-11-24 01:05:42,402 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:05:42,404 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_variablewrapping_normal_file-41.i that has 2 procedures, 48 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:05:42,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:05:42,494 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;@10d3a4a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:05:42,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:05:42,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:05:42,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:05:42,515 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:42,516 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:42,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:42,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:42,523 INFO L85 PathProgramCache]: Analyzing trace with hash 20836915, now seen corresponding path program 1 times [2024-11-24 01:05:42,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:05:42,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1953370323] [2024-11-24 01:05:42,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:42,538 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:05:42,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:05:42,541 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:05:42,543 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 01:05:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:42,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:05:42,889 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:05:42,949 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 170 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2024-11-24 01:05:42,949 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:05:42,950 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:05:42,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1953370323] [2024-11-24 01:05:42,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1953370323] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:05:42,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:05:42,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:05:42,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611570586] [2024-11-24 01:05:42,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:05:42,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:05:42,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:05:42,985 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:05:42,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:05:42,989 INFO L87 Difference]: Start difference. First operand has 48 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 32 states have internal predecessors, (42), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:05:43,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:05:43,022 INFO L93 Difference]: Finished difference Result 89 states and 148 transitions. [2024-11-24 01:05:43,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:05:43,024 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 92 [2024-11-24 01:05:43,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:05:43,032 INFO L225 Difference]: With dead ends: 89 [2024-11-24 01:05:43,032 INFO L226 Difference]: Without dead ends: 44 [2024-11-24 01:05:43,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:05:43,045 INFO L435 NwaCegarLoop]: 63 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, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:05:43,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:05:43,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-24 01:05:43,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-24 01:05:43,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-24 01:05:43,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 63 transitions. [2024-11-24 01:05:43,090 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 63 transitions. Word has length 92 [2024-11-24 01:05:43,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:05:43,091 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 63 transitions. [2024-11-24 01:05:43,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-24 01:05:43,091 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 63 transitions. [2024-11-24 01:05:43,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-24 01:05:43,095 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:05:43,096 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:05:43,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 01:05:43,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:05:43,297 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:05:43,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:05:43,297 INFO L85 PathProgramCache]: Analyzing trace with hash -606240841, now seen corresponding path program 1 times [2024-11-24 01:05:43,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:05:43,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710448184] [2024-11-24 01:05:43,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:05:43,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:05:43,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:05:43,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:05:43,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 01:05:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:05:43,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-24 01:05:43,631 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:06:00,181 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 189 proven. 15 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-24 01:06:00,182 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:08:32,330 WARN L286 SmtUtils]: Spent 13.84s on a formula simplification. DAG size of input: 92 DAG size of output: 91 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:09:18,057 WARN L286 SmtUtils]: Spent 7.88s on a formula simplification. DAG size of input: 5 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-24 01:11:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-24 01:11:07,060 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:11:07,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710448184] [2024-11-24 01:11:07,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710448184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:11:07,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:11:07,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 18 [2024-11-24 01:11:07,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207707435] [2024-11-24 01:11:07,061 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:11:07,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:11:07,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:11:07,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:11:07,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:11:07,066 INFO L87 Difference]: Start difference. First operand 44 states and 63 transitions. Second operand has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-24 01:11:17,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:19,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:22,700 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:25,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:27,958 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:30,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:33,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:36,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:38,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.33s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:41,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:45,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.69s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:48,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:50,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:53,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result VALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:55,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:56,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:11:58,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:12:47,993 WARN L286 SmtUtils]: Spent 13.36s on a formula simplification. DAG size of input: 102 DAG size of output: 84 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:13:15,435 WARN L286 SmtUtils]: Spent 17.04s on a formula simplification. DAG size of input: 105 DAG size of output: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:13:42,178 WARN L286 SmtUtils]: Spent 15.43s on a formula simplification. DAG size of input: 105 DAG size of output: 87 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-24 01:14:13,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.86s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-24 01:14:13,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:13,912 INFO L93 Difference]: Finished difference Result 160 states and 217 transitions. [2024-11-24 01:14:13,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-24 01:14:13,920 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 92 [2024-11-24 01:14:13,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:13,924 INFO L225 Difference]: With dead ends: 160 [2024-11-24 01:14:13,925 INFO L226 Difference]: Without dead ends: 119 [2024-11-24 01:14:13,926 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 204.2s TimeCoverageRelationStatistics Valid=294, Invalid=896, Unknown=0, NotChecked=0, Total=1190 [2024-11-24 01:14:13,927 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 204 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 87.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 89.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:13,927 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 292 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 89.3s Time] [2024-11-24 01:14:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-24 01:14:13,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 86. [2024-11-24 01:14:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 60 states have (on average 1.2666666666666666) internal successors, (76), 61 states have internal predecessors, (76), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-24 01:14:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 120 transitions. [2024-11-24 01:14:13,958 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 120 transitions. Word has length 92 [2024-11-24 01:14:13,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:13,959 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 120 transitions. [2024-11-24 01:14:13,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-24 01:14:13,959 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 120 transitions. [2024-11-24 01:14:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 01:14:13,962 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:13,963 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:13,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 01:14:14,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:14:14,164 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:14,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:14,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1765751739, now seen corresponding path program 1 times [2024-11-24 01:14:14,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:14,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140918294] [2024-11-24 01:14:14,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:14,166 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:14:14,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:14,169 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:14:14,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 01:14:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:14,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:14:14,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:14,333 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:14,333 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:14,334 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:14,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140918294] [2024-11-24 01:14:14,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140918294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:14,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:14,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:14:14,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165428437] [2024-11-24 01:14:14,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:14,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:14:14,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:14,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:14:14,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:14:14,336 INFO L87 Difference]: Start difference. First operand 86 states and 120 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:14,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:14,602 INFO L93 Difference]: Finished difference Result 166 states and 232 transitions. [2024-11-24 01:14:14,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:14:14,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-11-24 01:14:14,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:14,614 INFO L225 Difference]: With dead ends: 166 [2024-11-24 01:14:14,614 INFO L226 Difference]: Without dead ends: 83 [2024-11-24 01:14:14,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:14:14,615 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:14,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:14:14,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-24 01:14:14,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 81. [2024-11-24 01:14:14,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 56 states have internal predecessors, (65), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-24 01:14:14,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2024-11-24 01:14:14,628 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 93 [2024-11-24 01:14:14,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:14,629 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2024-11-24 01:14:14,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2024-11-24 01:14:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 01:14:14,630 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:14,631 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:14,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-24 01:14:14,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:14:14,831 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:14,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:14,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1620087837, now seen corresponding path program 1 times [2024-11-24 01:14:14,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:14,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1207085185] [2024-11-24 01:14:14,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:14,833 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:14:14,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:14,836 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:14:14,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 01:14:14,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:14,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-24 01:14:14,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:14:14,995 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-24 01:14:14,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:14:14,996 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:14:14,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1207085185] [2024-11-24 01:14:14,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1207085185] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:14:14,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:14:14,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:14:14,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936496042] [2024-11-24 01:14:14,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:14:14,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:14:14,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:14:14,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:14:14,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:14:14,997 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:15,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:14:15,249 INFO L93 Difference]: Finished difference Result 152 states and 205 transitions. [2024-11-24 01:14:15,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:14:15,250 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-11-24 01:14:15,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:14:15,251 INFO L225 Difference]: With dead ends: 152 [2024-11-24 01:14:15,251 INFO L226 Difference]: Without dead ends: 73 [2024-11-24 01:14:15,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:14:15,252 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 10 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:14:15,252 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 107 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:14:15,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-24 01:14:15,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-24 01:14:15,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 48 states have internal predecessors, (52), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-24 01:14:15,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 96 transitions. [2024-11-24 01:14:15,264 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 96 transitions. Word has length 93 [2024-11-24 01:14:15,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:14:15,264 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 96 transitions. [2024-11-24 01:14:15,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-11-24 01:14:15,265 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 96 transitions. [2024-11-24 01:14:15,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-24 01:14:15,266 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:14:15,266 INFO L218 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:14:15,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-24 01:14:15,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:14:15,467 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:14:15,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:14:15,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1293756511, now seen corresponding path program 1 times [2024-11-24 01:14:15,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:14:15,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1013248648] [2024-11-24 01:14:15,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:14:15,468 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:14:15,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:14:15,472 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:14:15,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-24 01:14:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:14:15,617 INFO L256 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-24 01:14:15,621 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:15:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 189 proven. 15 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-11-24 01:15:11,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:18:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2024-11-24 01:18:49,452 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:18:49,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1013248648] [2024-11-24 01:18:49,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1013248648] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:18:49,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:18:49,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-24 01:18:49,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119042104] [2024-11-24 01:18:49,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:18:49,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-24 01:18:49,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:18:49,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-24 01:18:49,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=374, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:18:49,455 INFO L87 Difference]: Start difference. First operand 73 states and 96 transitions. Second operand has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-24 01:20:03,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:20:03,691 INFO L93 Difference]: Finished difference Result 123 states and 160 transitions. [2024-11-24 01:20:03,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-24 01:20:03,704 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) Word has length 93 [2024-11-24 01:20:03,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:20:03,705 INFO L225 Difference]: With dead ends: 123 [2024-11-24 01:20:03,705 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:20:03,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 88.9s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 01:20:03,707 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 88 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:20:03,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 564 Invalid, 706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 46.0s Time] [2024-11-24 01:20:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:20:03,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:20:03,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:20:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:20:03,709 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 93 [2024-11-24 01:20:03,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:20:03,709 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:20:03,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 23 states have internal predecessors, (60), 4 states have call successors, (28), 3 states have call predecessors, (28), 5 states have return successors, (28), 4 states have call predecessors, (28), 4 states have call successors, (28) [2024-11-24 01:20:03,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:20:03,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:20:03,712 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:20:03,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-24 01:20:03,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55070cc2-f597-42a1-adda-c207daaae0ac/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:20:03,916 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-24 01:20:03,918 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:20:24,343 WARN L286 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 69 DAG size of output: 8 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter)