./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.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_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/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_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/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_170857d7-a762-4dd5-9879-da49817b3fd4/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 95c96df7d48b53cdbb9c1456f1c2ecd52604550b1a3e3a72f040303ef67588fb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:28:21,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:28:21,306 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:28:21,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:28:21,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:28:21,346 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:28:21,347 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:28:21,347 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:28:21,347 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:28:21,347 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:28:21,348 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:28:21,348 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:28:21,348 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:28:21,348 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:28:21,348 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:28:21,349 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:28:21,349 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:28:21,349 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:28:21,349 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:28:21,349 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:28:21,349 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:28:21,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:28:21,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:28:21,349 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:28:21,350 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:28:21,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:28:21,350 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:28:21,350 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:28:21,350 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:28:21,350 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:28:21,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:28:21,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:28:21,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:21,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:21,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:28:21,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:28:21,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:28:21,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:28:21,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:28:21,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:28:21,352 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_170857d7-a762-4dd5-9879-da49817b3fd4/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 -> 95c96df7d48b53cdbb9c1456f1c2ecd52604550b1a3e3a72f040303ef67588fb [2024-11-23 23:28:21,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:28:21,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:28:21,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:28:21,840 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:28:21,841 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:28:21,843 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i [2024-11-23 23:28:25,018 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data/9ccdc646c/bbec6c495e7f4cb8ab444b48989aabb3/FLAGa0af2450f [2024-11-23 23:28:25,357 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:28:25,357 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i [2024-11-23 23:28:25,365 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data/9ccdc646c/bbec6c495e7f4cb8ab444b48989aabb3/FLAGa0af2450f [2024-11-23 23:28:25,625 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data/9ccdc646c/bbec6c495e7f4cb8ab444b48989aabb3 [2024-11-23 23:28:25,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:28:25,628 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:28:25,629 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:28:25,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:28:25,634 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:28:25,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76529059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25, skipping insertion in model container [2024-11-23 23:28:25,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,652 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:28:25,797 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_170857d7-a762-4dd5-9879-da49817b3fd4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i[915,928] [2024-11-23 23:28:25,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:28:25,869 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:28:25,880 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_170857d7-a762-4dd5-9879-da49817b3fd4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i[915,928] [2024-11-23 23:28:25,917 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:28:25,944 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:28:25,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25 WrapperNode [2024-11-23 23:28:25,945 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:28:25,946 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:28:25,946 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:28:25,946 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:28:25,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:25,968 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,028 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2024-11-23 23:28:26,028 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:28:26,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:28:26,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:28:26,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:28:26,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,044 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,076 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]. [2024-11-23 23:28:26,079 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,093 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,101 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:28:26,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:28:26,117 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:28:26,118 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:28:26,119 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (1/1) ... [2024-11-23 23:28:26,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:26,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:26,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:28:26,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:28:26,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:28:26,190 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:28:26,190 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:28:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:28:26,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:28:26,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:28:26,290 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:28:26,292 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:28:26,678 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-23 23:28:26,679 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:28:26,695 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:28:26,696 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:28:26,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:26 BoogieIcfgContainer [2024-11-23 23:28:26,696 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:28:26,699 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:28:26,699 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:28:26,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:28:26,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:28:25" (1/3) ... [2024-11-23 23:28:26,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240c86ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:28:26, skipping insertion in model container [2024-11-23 23:28:26,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:25" (2/3) ... [2024-11-23 23:28:26,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@240c86ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:28:26, skipping insertion in model container [2024-11-23 23:28:26,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:26" (3/3) ... [2024-11-23 23:28:26,708 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-49.i [2024-11-23 23:28:26,726 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:28:26,728 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-49.i that has 2 procedures, 56 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:28:26,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:28:26,827 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;@332f89b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:28:26,827 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:28:26,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 38 states have internal predecessors, (49), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:28:26,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:28:26,848 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:26,849 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:26,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:26,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:26,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2003138969, now seen corresponding path program 1 times [2024-11-23 23:28:26,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:26,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156999172] [2024-11-23 23:28:26,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:26,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:27,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:27,157 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-23 23:28:27,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:28:27,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156999172] [2024-11-23 23:28:27,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156999172] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:28:27,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1148935106] [2024-11-23 23:28:27,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:27,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:28:27,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:27,162 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:28:27,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:28:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:27,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:28:27,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:28:27,412 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-23 23:28:27,415 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:28:27,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1148935106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:27,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:28:27,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 23:28:27,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823615219] [2024-11-23 23:28:27,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:27,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:28:27,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:28:27,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:28:27,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:28:27,449 INFO L87 Difference]: Start difference. First operand has 56 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 38 states have internal predecessors, (49), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:27,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:27,475 INFO L93 Difference]: Finished difference Result 105 states and 172 transitions. [2024-11-23 23:28:27,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:28:27,477 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 104 [2024-11-23 23:28:27,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:27,484 INFO L225 Difference]: With dead ends: 105 [2024-11-23 23:28:27,484 INFO L226 Difference]: Without dead ends: 52 [2024-11-23 23:28:27,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:28:27,491 INFO L435 NwaCegarLoop]: 74 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, 74 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 [2024-11-23 23:28:27,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:27,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-23 23:28:27,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-23 23:28:27,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 34 states have (on average 1.2352941176470589) internal successors, (42), 34 states have internal predecessors, (42), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:28:27,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 74 transitions. [2024-11-23 23:28:27,549 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 74 transitions. Word has length 104 [2024-11-23 23:28:27,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:27,551 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 74 transitions. [2024-11-23 23:28:27,552 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, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:27,552 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2024-11-23 23:28:27,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-23 23:28:27,556 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:27,557 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:27,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 23:28:27,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 23:28:27,758 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:27,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:27,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1774878379, now seen corresponding path program 1 times [2024-11-23 23:28:27,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:28:27,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629575912] [2024-11-23 23:28:27,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:27,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:28:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:28:27,928 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 23:28:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 23:28:28,070 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 23:28:28,070 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 23:28:28,071 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:28:28,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:28:28,077 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 23:28:28,175 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:28:28,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:28:28 BoogieIcfgContainer [2024-11-23 23:28:28,179 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:28:28,180 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:28:28,180 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:28:28,180 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:28:28,181 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:26" (3/4) ... [2024-11-23 23:28:28,187 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 23:28:28,188 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:28:28,189 INFO L158 Benchmark]: Toolchain (without parser) took 2560.50ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 43.7MB in the end (delta: 48.9MB). Peak memory consumption was 47.6MB. Max. memory is 16.1GB. [2024-11-23 23:28:28,189 INFO L158 Benchmark]: CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:28:28,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.06ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.0MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:28:28,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.50ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 75.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:28:28,191 INFO L158 Benchmark]: Boogie Preprocessor took 86.26ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 68.3MB in the end (delta: 7.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:28:28,192 INFO L158 Benchmark]: RCFGBuilder took 580.51ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 49.6MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:28:28,193 INFO L158 Benchmark]: TraceAbstraction took 1479.83ms. Allocated memory is still 117.4MB. Free memory was 49.3MB in the beginning and 44.4MB in the end (delta: 4.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2024-11-23 23:28:28,193 INFO L158 Benchmark]: Witness Printer took 8.14ms. Allocated memory is still 117.4MB. Free memory was 44.4MB in the beginning and 43.7MB in the end (delta: 667.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:28:28,195 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48ms. Allocated memory is still 83.9MB. Free memory is still 41.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.06ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 79.0MB in the end (delta: 13.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.50ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 75.3MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 86.26ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 68.3MB in the end (delta: 7.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 580.51ms. Allocated memory is still 117.4MB. Free memory was 68.3MB in the beginning and 49.6MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1479.83ms. Allocated memory is still 117.4MB. Free memory was 49.3MB in the beginning and 44.4MB in the end (delta: 4.9MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 8.14ms. Allocated memory is still 117.4MB. Free memory was 44.4MB in the beginning and 43.7MB in the end (delta: 667.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryFLOATComparisonOperation at line 41, overapproximation of someBinaryFLOATComparisonOperation at line 63, overapproximation of someBinaryFLOATComparisonOperation at line 65. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned short int var_1_1 = 4; [L23] float var_1_2 = 1000000000000000.4; [L24] float var_1_3 = 1000.2; [L25] unsigned short int var_1_4 = 256; [L26] unsigned short int var_1_5 = 4; [L27] unsigned short int var_1_6 = 10; [L28] signed short int var_1_8 = 128; [L29] unsigned char var_1_10 = 0; [L30] unsigned char var_1_11 = 0; [L31] unsigned char var_1_12 = 0; [L32] unsigned char var_1_13 = 1; [L33] unsigned char var_1_14 = 0; [L34] signed char var_1_15 = -1; [L35] signed char var_1_16 = 0; VAL [isInitial=0, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_2=5000000000000002/5, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L95] isInitial = 1 [L96] FCALL initially() [L98] FCALL updateLastVariables() [L99] CALL updateVariables() [L62] var_1_2 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L63] RET assume_abort_if_not((var_1_2 >= -922337.2036854776000e+13F && var_1_2 <= -1.0e-20F) || (var_1_2 <= 9223372.036854776000e+12F && var_1_2 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_3=5001/5, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L64] var_1_3 = __VERIFIER_nondet_float() [L65] CALL assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L65] RET assume_abort_if_not((var_1_3 >= -922337.2036854776000e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854776000e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=256, var_1_5=4, var_1_6=10, var_1_8=128] [L66] var_1_4 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_5=4, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_5=4, var_1_6=10, var_1_8=128] [L67] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_5=4, var_1_6=10, var_1_8=128] [L68] CALL assume_abort_if_not(var_1_4 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128] [L68] RET assume_abort_if_not(var_1_4 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=10, var_1_8=128] [L69] var_1_5 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_6=10, var_1_8=128] [L70] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_6=10, var_1_8=128] [L71] CALL assume_abort_if_not(var_1_5 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=10, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=10, var_1_8=128] [L71] RET assume_abort_if_not(var_1_5 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=10, var_1_8=128] [L72] var_1_6 = __VERIFIER_nondet_ushort() [L73] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_8=128] [L73] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_8=128] [L74] CALL assume_abort_if_not(var_1_6 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L74] RET assume_abort_if_not(var_1_6 <= 65534) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L75] var_1_11 = __VERIFIER_nondet_uchar() [L76] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L76] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L77] CALL assume_abort_if_not(var_1_11 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L77] RET assume_abort_if_not(var_1_11 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L78] var_1_12 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L79] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L80] CALL assume_abort_if_not(var_1_12 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L80] RET assume_abort_if_not(var_1_12 <= 0) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=0, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L81] var_1_14 = __VERIFIER_nondet_uchar() [L82] CALL assume_abort_if_not(var_1_14 >= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L82] RET assume_abort_if_not(var_1_14 >= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L83] CALL assume_abort_if_not(var_1_14 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L83] RET assume_abort_if_not(var_1_14 <= 1) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=0, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L84] var_1_16 = __VERIFIER_nondet_char() [L85] CALL assume_abort_if_not(var_1_16 >= -127) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=-50, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=-50, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L85] RET assume_abort_if_not(var_1_16 >= -127) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=-50, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L86] CALL assume_abort_if_not(var_1_16 <= 126) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=-50, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=-50, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L86] RET assume_abort_if_not(var_1_16 <= 126) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=1, var_1_14=-255, var_1_15=-1, var_1_16=-50, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L99] RET updateVariables() [L100] CALL step() [L39] var_1_13 = var_1_14 [L40] var_1_15 = var_1_16 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=-50, var_1_16=-50, var_1_1=4, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L41] COND FALSE !(var_1_2 >= 64.5f) [L52] var_1_1 = 50 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=-50, var_1_16=-50, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=128] [L54] var_1_8 = ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15))) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=-50, var_1_16=-50, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=50] [L55] EXPR 50 >> var_1_4 VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=-50, var_1_16=-50, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=50] [L55] COND TRUE (50 >> var_1_4) <= var_1_8 [L56] var_1_10 = ((! (! var_1_11)) || var_1_12) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=-50, var_1_16=-50, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=50] [L100] RET step() [L101] CALL, EXPR property() [L91] EXPR (((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11)))) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=-50, var_1_16=-50, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=50] [L91-L92] return (((((var_1_2 >= 64.5f) ? ((var_1_2 >= var_1_3) ? (var_1_1 == ((unsigned short int) (((((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) < 0 ) ? -((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))) : ((((var_1_4) > (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6))))) ? (var_1_4) : (((((var_1_5) > (var_1_6)) ? (var_1_5) : (var_1_6)))))))))) : (var_1_13 ? (var_1_1 == ((unsigned short int) var_1_5)) : (var_1_1 == ((unsigned short int) var_1_6)))) : (var_1_1 == ((unsigned short int) 50))) && (var_1_8 == ((signed short int) ((((var_1_15) < 0 ) ? -(var_1_15) : (var_1_15)))))) && (((50 >> var_1_4) <= var_1_8) ? (var_1_10 == ((unsigned char) ((! (! var_1_11)) || var_1_12))) : (var_1_10 == ((unsigned char) (! var_1_11))))) && (var_1_13 == ((unsigned char) var_1_14))) && (var_1_15 == ((signed char) var_1_16)) ; [L101] RET, EXPR property() [L101] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=-50, var_1_16=-50, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=50] [L19] reach_error() VAL [isInitial=1, var_1_10=0, var_1_11=0, var_1_12=0, var_1_13=-255, var_1_14=-255, var_1_15=-50, var_1_16=-50, var_1_1=50, var_1_4=0, var_1_5=65534, var_1_6=65533, var_1_8=50] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 16, 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, 74 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, 74 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 312 NumberOfCodeBlocks, 312 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 206 ConstructedInterpolants, 0 QuantifiedInterpolants, 206 SizeOfPredicates, 0 NumberOfNonLiveVariables, 240 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 930/960 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 [2024-11-23 23:28:28,215 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/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_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/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_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/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_170857d7-a762-4dd5-9879-da49817b3fd4/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 95c96df7d48b53cdbb9c1456f1c2ecd52604550b1a3e3a72f040303ef67588fb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:28:31,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:28:31,427 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 23:28:31,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:28:31,441 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:28:31,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:28:31,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:28:31,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:28:31,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:28:31,494 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:28:31,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:28:31,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:28:31,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:28:31,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:28:31,495 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:28:31,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:28:31,497 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:28:31,497 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:28:31,497 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:28:31,497 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:28:31,497 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:28:31,498 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:28:31,499 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:28:31,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:28:31,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:28:31,500 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:28:31,500 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:31,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:28:31,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:28:31,501 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:28:31,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:28:31,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:31,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:28:31,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:28:31,501 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:28:31,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:28:31,502 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 23:28:31,502 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 23:28:31,502 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:28:31,502 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:28:31,502 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:28:31,502 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:28:31,502 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_170857d7-a762-4dd5-9879-da49817b3fd4/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 -> 95c96df7d48b53cdbb9c1456f1c2ecd52604550b1a3e3a72f040303ef67588fb [2024-11-23 23:28:31,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:28:31,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:28:31,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:28:31,933 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:28:31,933 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:28:31,935 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i [2024-11-23 23:28:35,188 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data/80ef759d0/4fadfe76ce1c42629b5b6f9153c53747/FLAG0f3ea8cb2 [2024-11-23 23:28:35,514 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:28:35,515 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i [2024-11-23 23:28:35,526 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data/80ef759d0/4fadfe76ce1c42629b5b6f9153c53747/FLAG0f3ea8cb2 [2024-11-23 23:28:35,551 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/data/80ef759d0/4fadfe76ce1c42629b5b6f9153c53747 [2024-11-23 23:28:35,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:28:35,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:28:35,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:28:35,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:28:35,566 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:28:35,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:35,568 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f49ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35, skipping insertion in model container [2024-11-23 23:28:35,568 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:35,594 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:28:35,799 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_170857d7-a762-4dd5-9879-da49817b3fd4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i[915,928] [2024-11-23 23:28:35,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:28:35,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:28:35,906 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_170857d7-a762-4dd5-9879-da49817b3fd4/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-49.i[915,928] [2024-11-23 23:28:35,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:28:35,959 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:28:35,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35 WrapperNode [2024-11-23 23:28:35,959 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:28:35,961 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:28:35,961 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:28:35,961 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:28:35,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:35,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,004 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 103 [2024-11-23 23:28:36,005 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:28:36,006 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:28:36,006 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:28:36,006 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:28:36,017 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,017 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,021 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,035 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]. [2024-11-23 23:28:36,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,046 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,052 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,054 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,058 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:28:36,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:28:36,064 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:28:36,064 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:28:36,065 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (1/1) ... [2024-11-23 23:28:36,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:28:36,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:28:36,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:28:36,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:28:36,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:28:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 23:28:36,161 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 23:28:36,161 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 23:28:36,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:28:36,162 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:28:36,267 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:28:36,269 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:28:36,610 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-23 23:28:36,610 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:28:36,622 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:28:36,622 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 23:28:36,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:36 BoogieIcfgContainer [2024-11-23 23:28:36,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:28:36,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:28:36,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:28:36,634 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:28:36,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:28:35" (1/3) ... [2024-11-23 23:28:36,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd213fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:28:36, skipping insertion in model container [2024-11-23 23:28:36,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:28:35" (2/3) ... [2024-11-23 23:28:36,635 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd213fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:28:36, skipping insertion in model container [2024-11-23 23:28:36,635 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:28:36" (3/3) ... [2024-11-23 23:28:36,637 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-49.i [2024-11-23 23:28:36,651 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:28:36,653 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-49.i that has 2 procedures, 49 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 23:28:36,720 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:28:36,740 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;@215a4fee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:28:36,740 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:28:36,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:28:36,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:28:36,779 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:36,780 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:36,780 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:36,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:36,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1089611681, now seen corresponding path program 1 times [2024-11-23 23:28:36,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:28:36,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188158182] [2024-11-23 23:28:36,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:36,796 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 [2024-11-23 23:28:36,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:28:36,800 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-23 23:28:36,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-23 23:28:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:37,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 23:28:37,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:28:37,111 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 346 trivial. 0 not checked. [2024-11-23 23:28:37,112 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:28:37,113 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 23:28:37,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188158182] [2024-11-23 23:28:37,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188158182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:28:37,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:28:37,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:28:37,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042646424] [2024-11-23 23:28:37,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:28:37,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:28:37,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 23:28:37,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:28:37,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:28:37,151 INFO L87 Difference]: Start difference. First operand has 49 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:28:37,193 INFO L93 Difference]: Finished difference Result 91 states and 152 transitions. [2024-11-23 23:28:37,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:28:37,196 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 101 [2024-11-23 23:28:37,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:28:37,205 INFO L225 Difference]: With dead ends: 91 [2024-11-23 23:28:37,207 INFO L226 Difference]: Without dead ends: 45 [2024-11-23 23:28:37,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:28:37,217 INFO L435 NwaCegarLoop]: 64 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, 64 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 [2024-11-23 23:28:37,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:28:37,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-23 23:28:37,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-23 23:28:37,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-23 23:28:37,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2024-11-23 23:28:37,288 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 101 [2024-11-23 23:28:37,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:28:37,289 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2024-11-23 23:28:37,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-23 23:28:37,290 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2024-11-23 23:28:37,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 23:28:37,295 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:28:37,295 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:28:37,304 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-23 23:28:37,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:28:37,497 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:28:37,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:28:37,498 INFO L85 PathProgramCache]: Analyzing trace with hash -1385515555, now seen corresponding path program 1 times [2024-11-23 23:28:37,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 23:28:37,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379673484] [2024-11-23 23:28:37,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:28:37,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 23:28:37,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 23:28:37,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/mathsat -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) [2024-11-23 23:28:37,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_170857d7-a762-4dd5-9879-da49817b3fd4/bin/uautomizer-verify-LYvppIcaGC/mathsat -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 [2024-11-23 23:28:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:28:37,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 23:28:37,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:38:03,612 WARN L286 SmtUtils]: Spent 27.43s on a formula simplification. DAG size of input: 769 DAG size of output: 588 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)