./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/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 dafa341f40b13e49f80402e9ea3402d959e0a4d8911cbb5b816668fe007b77dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:07:25,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:07:25,336 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 01:07:25,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:07:25,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:07:25,367 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:07:25,368 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:07:25,368 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:07:25,369 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:07:25,369 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:07:25,369 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:07:25,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:07:25,369 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:07:25,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:07:25,370 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:07:25,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:07:25,370 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:07:25,370 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:07:25,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:07:25,371 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:07:25,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:07:25,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:07:25,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:07:25,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:07:25,372 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:07:25,372 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:07:25,372 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:07:25,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:07:25,372 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:07:25,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:07:25,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:07:25,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:07:25,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:07:25,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:07:25,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:07:25,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:07:25,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:07:25,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:07:25,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:07:25,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:07:25,373 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:07:25,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:07:25,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:07:25,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:07:25,375 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:07:25,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:07:25,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:07:25,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:07:25,376 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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/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 -> dafa341f40b13e49f80402e9ea3402d959e0a4d8911cbb5b816668fe007b77dd [2024-11-24 01:07:25,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:07:25,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:07:25,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:07:25,667 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:07:25,668 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:07:25,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i [2024-11-24 01:07:28,591 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data/7bf26c486/8c5e3650067547d99a9dcaf7a671a824/FLAG4610c3f66 [2024-11-24 01:07:28,890 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:07:28,891 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i [2024-11-24 01:07:28,904 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data/7bf26c486/8c5e3650067547d99a9dcaf7a671a824/FLAG4610c3f66 [2024-11-24 01:07:28,928 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data/7bf26c486/8c5e3650067547d99a9dcaf7a671a824 [2024-11-24 01:07:28,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:07:28,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:07:28,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:07:28,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:07:28,940 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:07:28,941 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:07:28" (1/1) ... [2024-11-24 01:07:28,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71bd6cb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:28, skipping insertion in model container [2024-11-24 01:07:28,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:07:28" (1/1) ... [2024-11-24 01:07:28,967 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:07:29,139 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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i[915,928] [2024-11-24 01:07:29,226 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:07:29,239 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:07:29,254 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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i[915,928] [2024-11-24 01:07:29,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:07:29,313 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:07:29,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29 WrapperNode [2024-11-24 01:07:29,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:07:29,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:07:29,316 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:07:29,316 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:07:29,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,341 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,408 INFO L138 Inliner]: procedures = 26, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 161 [2024-11-24 01:07:29,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:07:29,412 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:07:29,412 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:07:29,414 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:07:29,421 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,424 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,442 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:07:29,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,442 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,451 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,457 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,461 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,466 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:07:29,467 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:07:29,467 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:07:29,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:07:29,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (1/1) ... [2024-11-24 01:07:29,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:07:29,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:07:29,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:07:29,520 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:07:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:07:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:07:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:07:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:07:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:07:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:07:29,666 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:07:29,668 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:07:30,361 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-24 01:07:30,362 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:07:30,378 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:07:30,378 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:07:30,380 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:30 BoogieIcfgContainer [2024-11-24 01:07:30,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:07:30,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:07:30,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:07:30,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:07:30,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:07:28" (1/3) ... [2024-11-24 01:07:30,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9358c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:07:30, skipping insertion in model container [2024-11-24 01:07:30,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:29" (2/3) ... [2024-11-24 01:07:30,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b9358c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:07:30, skipping insertion in model container [2024-11-24 01:07:30,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:30" (3/3) ... [2024-11-24 01:07:30,395 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-17.i [2024-11-24 01:07:30,415 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:07:30,416 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-while_file-17.i that has 2 procedures, 74 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:07:30,475 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:07:30,489 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;@501e09e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:07:30,491 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:07:30,496 INFO L276 IsEmpty]: Start isEmpty. Operand has 74 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 54 states have internal predecessors, (75), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:07:30,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 01:07:30,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:30,508 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:30,508 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:30,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:30,514 INFO L85 PathProgramCache]: Analyzing trace with hash 644121053, now seen corresponding path program 1 times [2024-11-24 01:07:30,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:07:30,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128312204] [2024-11-24 01:07:30,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:30,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:07:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:30,886 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-24 01:07:30,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:07:30,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128312204] [2024-11-24 01:07:30,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128312204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:07:30,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1383743286] [2024-11-24 01:07:30,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:30,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:07:30,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:07:30,896 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:07:30,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:07:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:31,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:07:31,170 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:07:31,210 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2024-11-24 01:07:31,214 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:07:31,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1383743286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:07:31,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:07:31,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:07:31,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097683459] [2024-11-24 01:07:31,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:07:31,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:07:31,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:07:31,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:07:31,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:07:31,253 INFO L87 Difference]: Start difference. First operand has 74 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 54 states have internal predecessors, (75), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:07:31,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:31,309 INFO L93 Difference]: Finished difference Result 141 states and 234 transitions. [2024-11-24 01:07:31,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:07:31,311 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 122 [2024-11-24 01:07:31,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:31,320 INFO L225 Difference]: With dead ends: 141 [2024-11-24 01:07:31,321 INFO L226 Difference]: Without dead ends: 70 [2024-11-24 01:07:31,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:07:31,328 INFO L435 NwaCegarLoop]: 104 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, 104 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:31,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:07:31,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-24 01:07:31,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-24 01:07:31,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 50 states have (on average 1.36) internal successors, (68), 50 states have internal predecessors, (68), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:07:31,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 104 transitions. [2024-11-24 01:07:31,375 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 104 transitions. Word has length 122 [2024-11-24 01:07:31,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:07:31,375 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 104 transitions. [2024-11-24 01:07:31,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:07:31,376 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 104 transitions. [2024-11-24 01:07:31,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-24 01:07:31,379 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:31,379 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:31,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:07:31,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 01:07:31,584 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:31,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:31,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1321897119, now seen corresponding path program 1 times [2024-11-24 01:07:31,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:07:31,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780580618] [2024-11-24 01:07:31,585 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:31,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:07:31,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:32,465 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 01:07:32,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:07:32,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780580618] [2024-11-24 01:07:32,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780580618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:07:32,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:07:32,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:07:32,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639919911] [2024-11-24 01:07:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:07:32,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:07:32,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:07:32,471 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:07:32,471 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:07:32,472 INFO L87 Difference]: Start difference. First operand 70 states and 104 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:07:32,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:32,795 INFO L93 Difference]: Finished difference Result 205 states and 307 transitions. [2024-11-24 01:07:32,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:07:32,796 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 122 [2024-11-24 01:07:32,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:32,800 INFO L225 Difference]: With dead ends: 205 [2024-11-24 01:07:32,802 INFO L226 Difference]: Without dead ends: 138 [2024-11-24 01:07:32,803 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:07:32,804 INFO L435 NwaCegarLoop]: 98 mSDtfsCounter, 70 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:32,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 343 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:07:32,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-24 01:07:32,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 106. [2024-11-24 01:07:32,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 67 states have (on average 1.2686567164179106) internal successors, (85), 67 states have internal predecessors, (85), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 01:07:32,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 157 transitions. [2024-11-24 01:07:32,855 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 157 transitions. Word has length 122 [2024-11-24 01:07:32,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:07:32,855 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 157 transitions. [2024-11-24 01:07:32,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:07:32,856 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 157 transitions. [2024-11-24 01:07:32,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 01:07:32,860 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:32,860 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:32,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:07:32,861 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:32,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:32,863 INFO L85 PathProgramCache]: Analyzing trace with hash 987988733, now seen corresponding path program 1 times [2024-11-24 01:07:32,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:07:32,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588193170] [2024-11-24 01:07:32,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:32,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:07:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:33,862 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-24 01:07:33,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:07:33,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588193170] [2024-11-24 01:07:33,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588193170] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:07:33,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973479324] [2024-11-24 01:07:33,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:33,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:07:33,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:07:33,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:07:33,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:07:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:34,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 01:07:34,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:07:34,757 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 317 proven. 21 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-24 01:07:34,759 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:07:35,377 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-24 01:07:35,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973479324] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:07:35,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:07:35,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2024-11-24 01:07:35,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674052360] [2024-11-24 01:07:35,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:07:35,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-24 01:07:35,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:07:35,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-24 01:07:35,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-24 01:07:35,380 INFO L87 Difference]: Start difference. First operand 106 states and 157 transitions. Second operand has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 states have internal predecessors, (84), 5 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2024-11-24 01:07:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:36,607 INFO L93 Difference]: Finished difference Result 327 states and 471 transitions. [2024-11-24 01:07:36,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-24 01:07:36,608 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 states have internal predecessors, (84), 5 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) Word has length 123 [2024-11-24 01:07:36,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:36,614 INFO L225 Difference]: With dead ends: 327 [2024-11-24 01:07:36,614 INFO L226 Difference]: Without dead ends: 260 [2024-11-24 01:07:36,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 237 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2024-11-24 01:07:36,619 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 519 mSDsluCounter, 461 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:36,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [529 Valid, 539 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:07:36,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-24 01:07:36,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 169. [2024-11-24 01:07:36,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 108 states have (on average 1.2037037037037037) internal successors, (130), 109 states have internal predecessors, (130), 54 states have call successors, (54), 6 states have call predecessors, (54), 6 states have return successors, (54), 53 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 01:07:36,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 238 transitions. [2024-11-24 01:07:36,679 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 238 transitions. Word has length 123 [2024-11-24 01:07:36,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:07:36,684 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 238 transitions. [2024-11-24 01:07:36,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.421052631578948) internal successors, (84), 19 states have internal predecessors, (84), 5 states have call successors, (43), 3 states have call predecessors, (43), 6 states have return successors, (44), 5 states have call predecessors, (44), 5 states have call successors, (44) [2024-11-24 01:07:36,685 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 238 transitions. [2024-11-24 01:07:36,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 01:07:36,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:36,687 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:36,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:07:36,894 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:07:36,894 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:36,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:36,895 INFO L85 PathProgramCache]: Analyzing trace with hash 729823295, now seen corresponding path program 1 times [2024-11-24 01:07:36,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:07:36,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226824439] [2024-11-24 01:07:36,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:36,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:07:37,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 01:07:37,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [265986333] [2024-11-24 01:07:37,026 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:37,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:07:37,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:07:37,028 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:07:37,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:07:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:07:37,149 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 01:07:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 01:07:37,324 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 01:07:37,324 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 01:07:37,325 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:07:37,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-24 01:07:37,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:07:37,532 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-24 01:07:37,612 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:07:37,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:07:37 BoogieIcfgContainer [2024-11-24 01:07:37,616 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:07:37,617 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:07:37,617 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:07:37,617 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:07:37,618 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:30" (3/4) ... [2024-11-24 01:07:37,620 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 01:07:37,621 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:07:37,622 INFO L158 Benchmark]: Toolchain (without parser) took 8689.52ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 117.5MB in the beginning and 130.0MB in the end (delta: -12.5MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2024-11-24 01:07:37,623 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:07:37,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.06ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 103.2MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:07:37,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.68ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 99.8MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:07:37,624 INFO L158 Benchmark]: Boogie Preprocessor took 54.14ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 94.8MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:07:37,624 INFO L158 Benchmark]: RCFGBuilder took 913.91ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 72.0MB in the end (delta: 22.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:07:37,624 INFO L158 Benchmark]: TraceAbstraction took 7231.71ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 71.3MB in the beginning and 130.0MB in the end (delta: -58.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:07:37,625 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 130.0MB in the end (delta: 30.1kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 01:07:37,627 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 117.4MB. Free memory is still 74.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.06ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 103.2MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.68ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 99.8MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 54.14ms. Allocated memory is still 142.6MB. Free memory was 99.8MB in the beginning and 94.8MB in the end (delta: 5.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 913.91ms. Allocated memory is still 142.6MB. Free memory was 94.8MB in the beginning and 72.0MB in the end (delta: 22.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7231.71ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 71.3MB in the beginning and 130.0MB in the end (delta: -58.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 130.0MB in the end (delta: 30.1kB). Peak memory consumption was 8.4MB. 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 someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryDOUBLEComparisonOperation at line 74, overapproximation of someBinaryDOUBLEComparisonOperation at line 106, overapproximation of someBinaryDOUBLEComparisonOperation at line 71, overapproximation of someBinaryDOUBLEComparisonOperation at line 121, overapproximation of someBinaryDOUBLEComparisonOperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 25; [L23] unsigned char var_1_2 = 25; [L24] unsigned char var_1_3 = 0; [L25] unsigned char var_1_4 = 0; [L26] signed long int var_1_5 = 4; [L27] unsigned char var_1_7 = 0; [L28] unsigned char var_1_8 = 1; [L29] unsigned char var_1_9 = 0; [L30] unsigned char var_1_10 = 0; [L31] double var_1_11 = 7.3; [L32] double var_1_12 = 1.25; [L33] double var_1_13 = 128.8; [L34] signed char var_1_14 = -1; [L35] signed char var_1_15 = 10; [L36] signed short int var_1_16 = 8; [L37] unsigned long int var_1_18 = 128; [L38] unsigned long int var_1_19 = 3963666122; [L39] unsigned char last_1_var_1_8 = 1; [L40] signed char last_1_var_1_14 = -1; VAL [isInitial=0, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=25, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L125] isInitial = 1 [L126] FCALL initially() [L128] CALL updateLastVariables() [L117] last_1_var_1_8 = var_1_8 [L118] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=25, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L128] RET updateLastVariables() [L129] CALL updateVariables() [L87] var_1_2 = __VERIFIER_nondet_uchar() [L88] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L88] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L89] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L89] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=0, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L90] var_1_3 = __VERIFIER_nondet_uchar() [L91] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L91] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L92] CALL assume_abort_if_not(var_1_3 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L92] RET assume_abort_if_not(var_1_3 <= 127) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=0, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L93] var_1_4 = __VERIFIER_nondet_uchar() [L94] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L94] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L95] CALL assume_abort_if_not(var_1_4 <= 127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L95] RET assume_abort_if_not(var_1_4 <= 127) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=0, var_1_8=1, var_1_9=0] [L96] var_1_7 = __VERIFIER_nondet_uchar() [L97] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_8=1, var_1_9=0] [L97] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_8=1, var_1_9=0] [L98] CALL assume_abort_if_not(var_1_7 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=0] [L98] RET assume_abort_if_not(var_1_7 <= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=0] [L99] var_1_9 = __VERIFIER_nondet_uchar() [L100] CALL assume_abort_if_not(var_1_9 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L100] RET assume_abort_if_not(var_1_9 >= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L101] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L101] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=0, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L102] var_1_10 = __VERIFIER_nondet_uchar() [L103] CALL assume_abort_if_not(var_1_10 >= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L103] RET assume_abort_if_not(var_1_10 >= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L104] CALL assume_abort_if_not(var_1_10 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L104] RET assume_abort_if_not(var_1_10 <= 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_12=5/4, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L105] var_1_12 = __VERIFIER_nondet_double() [L106] CALL assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L106] RET assume_abort_if_not((var_1_12 >= -922337.2036854765600e+13F && var_1_12 <= -1.0e-20F) || (var_1_12 <= 9223372.036854765600e+12F && var_1_12 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_13=644/5, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L107] var_1_13 = __VERIFIER_nondet_double() [L108] CALL assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L108] RET assume_abort_if_not((var_1_13 >= -922337.2036854765600e+13F && var_1_13 <= -1.0e-20F) || (var_1_13 <= 9223372.036854765600e+12F && var_1_13 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=10, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L109] var_1_15 = __VERIFIER_nondet_char() [L110] CALL assume_abort_if_not(var_1_15 >= -127) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L110] RET assume_abort_if_not(var_1_15 >= -127) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L111] CALL assume_abort_if_not(var_1_15 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L111] RET assume_abort_if_not(var_1_15 <= 126) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=3963666122, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L112] var_1_19 = __VERIFIER_nondet_ulong() [L113] CALL assume_abort_if_not(var_1_19 >= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L113] RET assume_abort_if_not(var_1_19 >= 2147483647) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L114] CALL assume_abort_if_not(var_1_19 <= 4294967294) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L114] RET assume_abort_if_not(var_1_19 <= 4294967294) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L129] RET updateVariables() [L130] CALL step() [L44] unsigned char stepLocal_0 = last_1_var_1_8; VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, stepLocal_0=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L45] COND TRUE stepLocal_0 && last_1_var_1_8 VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=4, var_1_7=1, var_1_8=1, var_1_9=1] [L46] COND TRUE \read(last_1_var_1_8) [L47] var_1_5 = (((((last_1_var_1_14) < 0 ) ? -(last_1_var_1_14) : (last_1_var_1_14))) - ((((var_1_4) < (var_1_2)) ? (var_1_4) : (var_1_2)))) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L52] COND TRUE var_1_5 < var_1_3 [L53] var_1_8 = ((var_1_7 || (last_1_var_1_8 || var_1_9)) && var_1_10) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=25, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L57] var_1_1 = (50 + ((((var_1_2) < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))))) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L58] COND FALSE !((64.4f + 1.5f) <= var_1_13) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L63] unsigned char stepLocal_3 = var_1_9 && var_1_8; VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, stepLocal_3=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=128, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L64] COND TRUE stepLocal_3 || (var_1_8 && var_1_10) [L65] var_1_18 = (var_1_19 - (((((1991720936u - var_1_1)) < (var_1_2)) ? ((1991720936u - var_1_1)) : (var_1_2)))) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=2147483640, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L69] signed long int stepLocal_1 = 8 + var_1_14; VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, stepLocal_1=7, var_1_10=1, var_1_11=73/10, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=2147483640, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L70] COND TRUE var_1_4 == stepLocal_1 [L71] var_1_11 = ((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=2, var_1_12=2, var_1_13=0, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=2147483640, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L73] EXPR var_1_15 & var_1_1 VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=2, var_1_12=2, var_1_13=0, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=2147483640, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L73] unsigned long int stepLocal_2 = var_1_18 * (var_1_15 & var_1_1); [L74] COND FALSE !(var_1_12 >= 9.6) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, stepLocal_2=0, var_1_10=1, var_1_11=2, var_1_12=2, var_1_13=0, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=2147483640, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L130] RET step() [L131] CALL, EXPR property() [L121] EXPR (((((var_1_1 == ((unsigned char) (50 + ((((var_1_2) < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))))))) && ((last_1_var_1_8 && last_1_var_1_8) ? (last_1_var_1_8 ? (var_1_5 == ((signed long int) (((((last_1_var_1_14) < 0 ) ? -(last_1_var_1_14) : (last_1_var_1_14))) - ((((var_1_4) < (var_1_2)) ? (var_1_4) : (var_1_2)))))) : (var_1_5 == ((signed long int) 8))) : 1)) && ((var_1_5 < var_1_3) ? (var_1_8 == ((unsigned char) ((var_1_7 || (last_1_var_1_8 || var_1_9)) && var_1_10))) : (var_1_8 == ((unsigned char) (! var_1_10))))) && ((var_1_4 == (8 + var_1_14)) ? (var_1_11 == ((double) ((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))))) : 1)) && (((64.4f + 1.5f) <= var_1_13) ? ((var_1_1 >= var_1_4) ? (var_1_14 == ((signed char) var_1_15)) : 1) : 1)) && ((var_1_12 >= 9.6) ? (var_1_10 ? (var_1_16 == ((signed short int) (2 - var_1_1))) : (((var_1_18 * (var_1_15 & var_1_1)) <= var_1_3) ? (var_1_16 == ((signed short int) var_1_18)) : (var_1_16 == ((signed short int) var_1_4)))) : 1) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=2, var_1_12=2, var_1_13=0, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=2147483640, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L121-L122] return ((((((var_1_1 == ((unsigned char) (50 + ((((var_1_2) < (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))) ? (var_1_2) : (((((var_1_3) < (var_1_4)) ? (var_1_3) : (var_1_4))))))))) && ((last_1_var_1_8 && last_1_var_1_8) ? (last_1_var_1_8 ? (var_1_5 == ((signed long int) (((((last_1_var_1_14) < 0 ) ? -(last_1_var_1_14) : (last_1_var_1_14))) - ((((var_1_4) < (var_1_2)) ? (var_1_4) : (var_1_2)))))) : (var_1_5 == ((signed long int) 8))) : 1)) && ((var_1_5 < var_1_3) ? (var_1_8 == ((unsigned char) ((var_1_7 || (last_1_var_1_8 || var_1_9)) && var_1_10))) : (var_1_8 == ((unsigned char) (! var_1_10))))) && ((var_1_4 == (8 + var_1_14)) ? (var_1_11 == ((double) ((((var_1_12) > (var_1_13)) ? (var_1_12) : (var_1_13))))) : 1)) && (((64.4f + 1.5f) <= var_1_13) ? ((var_1_1 >= var_1_4) ? (var_1_14 == ((signed char) var_1_15)) : 1) : 1)) && ((var_1_12 >= 9.6) ? (var_1_10 ? (var_1_16 == ((signed short int) (2 - var_1_1))) : (((var_1_18 * (var_1_15 & var_1_1)) <= var_1_3) ? (var_1_16 == ((signed short int) var_1_18)) : (var_1_16 == ((signed short int) var_1_4)))) : 1)) && (((var_1_9 && var_1_8) || (var_1_8 && var_1_10)) ? (var_1_18 == ((unsigned long int) (var_1_19 - (((((1991720936u - var_1_1)) < (var_1_2)) ? ((1991720936u - var_1_1)) : (var_1_2)))))) : (var_1_18 == ((unsigned long int) var_1_2))) ; [L131] RET, EXPR property() [L131] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=2, var_1_12=2, var_1_13=0, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=2147483640, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_14=-1, last_1_var_1_8=1, var_1_10=1, var_1_11=2, var_1_12=2, var_1_13=0, var_1_14=-1, var_1_15=0, var_1_16=8, var_1_18=2147483640, var_1_19=2147483647, var_1_1=56, var_1_2=7, var_1_3=262, var_1_4=7, var_1_5=-6, var_1_7=1, var_1_8=1, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.1s, OverallIterations: 4, TraceHistogramMax: 18, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 599 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 589 mSDsluCounter, 986 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 706 mSDsCounter, 217 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 649 IncrementalHoareTripleChecker+Invalid, 866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 217 mSolverCounterUnsat, 280 mSDtfsCounter, 649 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 400 GetRequests, 364 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=3, InterpolantAutomatonStates: 27, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 123 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 858 NumberOfCodeBlocks, 858 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 729 ConstructedInterpolants, 0 QuantifiedInterpolants, 1760 SizeOfPredicates, 4 NumberOfNonLiveVariables, 572 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 3575/3672 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 01:07:37,650 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/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 dafa341f40b13e49f80402e9ea3402d959e0a4d8911cbb5b816668fe007b77dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:07:40,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:07:40,390 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 01:07:40,396 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:07:40,397 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:07:40,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:07:40,459 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:07:40,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:07:40,460 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:07:40,461 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:07:40,461 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:07:40,462 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:07:40,462 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:07:40,462 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:07:40,462 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:07:40,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:07:40,462 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:07:40,462 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 01:07:40,463 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 01:07:40,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:07:40,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:07:40,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:07:40,470 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:07:40,471 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 01:07:40,475 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 01:07:40,475 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 01:07:40,475 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 01:07:40,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:07:40,475 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:07:40,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:07:40,475 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:07:40,475 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:07:40,475 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:07:40,476 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:07:40,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:07:40,476 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 01:07:40,477 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 01:07:40,477 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:07:40,477 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:07:40,477 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:07:40,477 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:07:40,477 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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/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 -> dafa341f40b13e49f80402e9ea3402d959e0a4d8911cbb5b816668fe007b77dd [2024-11-24 01:07:40,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:07:40,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:07:40,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:07:40,801 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:07:40,802 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:07:40,804 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i [2024-11-24 01:07:43,941 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data/c8cbc3f21/fe365a333aef4ebb94d75dae4f5b4330/FLAGe15344539 [2024-11-24 01:07:44,262 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:07:44,266 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i [2024-11-24 01:07:44,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data/c8cbc3f21/fe365a333aef4ebb94d75dae4f5b4330/FLAGe15344539 [2024-11-24 01:07:44,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/data/c8cbc3f21/fe365a333aef4ebb94d75dae4f5b4330 [2024-11-24 01:07:44,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:07:44,303 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:07:44,304 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:07:44,304 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:07:44,309 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:07:44,310 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,311 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50cdc88f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44, skipping insertion in model container [2024-11-24 01:07:44,311 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,334 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:07:44,509 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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i[915,928] [2024-11-24 01:07:44,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:07:44,646 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:07:44,663 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_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_50-while_file-17.i[915,928] [2024-11-24 01:07:44,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:07:44,719 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:07:44,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44 WrapperNode [2024-11-24 01:07:44,719 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:07:44,721 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:07:44,721 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:07:44,721 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:07:44,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,776 INFO L138 Inliner]: procedures = 27, calls = 31, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 128 [2024-11-24 01:07:44,780 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:07:44,780 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:07:44,781 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:07:44,781 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:07:44,798 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,805 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,828 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 01:07:44,828 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,828 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,848 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,863 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,872 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:07:44,879 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:07:44,879 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:07:44,879 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:07:44,881 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (1/1) ... [2024-11-24 01:07:44,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:07:44,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:07:44,928 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:07:44,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:07:44,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:07:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 01:07:44,965 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:07:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:07:44,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:07:44,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:07:45,084 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:07:45,087 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:07:46,366 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-24 01:07:46,367 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:07:46,382 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:07:46,384 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:07:46,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:46 BoogieIcfgContainer [2024-11-24 01:07:46,384 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:07:46,387 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:07:46,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:07:46,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:07:46,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:07:44" (1/3) ... [2024-11-24 01:07:46,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2215d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:07:46, skipping insertion in model container [2024-11-24 01:07:46,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:07:44" (2/3) ... [2024-11-24 01:07:46,398 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a2215d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:07:46, skipping insertion in model container [2024-11-24 01:07:46,399 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:07:46" (3/3) ... [2024-11-24 01:07:46,400 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_50-while_file-17.i [2024-11-24 01:07:46,419 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:07:46,420 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_50-while_file-17.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:07:46,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:07:46,510 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;@5db17f05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:07:46,511 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:07:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:07:46,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 01:07:46,526 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:46,527 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:46,528 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:46,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash 558496771, now seen corresponding path program 1 times [2024-11-24 01:07:46,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:07:46,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830613504] [2024-11-24 01:07:46,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:46,546 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:07:46,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:07:46,549 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:07:46,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 01:07:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:46,890 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:07:46,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:07:46,947 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2024-11-24 01:07:46,947 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:07:46,948 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:07:46,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830613504] [2024-11-24 01:07:46,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830613504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:07:46,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:07:46,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 01:07:46,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383207742] [2024-11-24 01:07:46,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:07:46,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:07:46,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:07:46,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:07:46,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:07:46,984 INFO L87 Difference]: Start difference. First operand has 61 states, 40 states have (on average 1.375) internal successors, (55), 41 states have internal predecessors, (55), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:07:47,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:47,022 INFO L93 Difference]: Finished difference Result 115 states and 194 transitions. [2024-11-24 01:07:47,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:07:47,025 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 119 [2024-11-24 01:07:47,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:47,033 INFO L225 Difference]: With dead ends: 115 [2024-11-24 01:07:47,035 INFO L226 Difference]: Without dead ends: 57 [2024-11-24 01:07:47,040 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:07:47,044 INFO L435 NwaCegarLoop]: 84 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, 84 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:47,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:07:47,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-24 01:07:47,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-24 01:07:47,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 37 states have internal predecessors, (48), 18 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-24 01:07:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2024-11-24 01:07:47,107 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 119 [2024-11-24 01:07:47,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:07:47,108 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2024-11-24 01:07:47,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-24 01:07:47,108 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2024-11-24 01:07:47,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-24 01:07:47,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:47,114 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:47,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-24 01:07:47,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:07:47,316 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:47,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:47,317 INFO L85 PathProgramCache]: Analyzing trace with hash 640030975, now seen corresponding path program 1 times [2024-11-24 01:07:47,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:07:47,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1131449065] [2024-11-24 01:07:47,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:47,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:07:47,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:07:47,322 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:07:47,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 01:07:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:47,616 INFO L256 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:07:47,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:07:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-11-24 01:07:48,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:07:48,249 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:07:48,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1131449065] [2024-11-24 01:07:48,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1131449065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:07:48,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:07:48,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:07:48,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006210880] [2024-11-24 01:07:48,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:07:48,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:07:48,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:07:48,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:07:48,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:07:48,255 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:07:49,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:49,051 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2024-11-24 01:07:49,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:07:49,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 119 [2024-11-24 01:07:49,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:49,064 INFO L225 Difference]: With dead ends: 166 [2024-11-24 01:07:49,067 INFO L226 Difference]: Without dead ends: 112 [2024-11-24 01:07:49,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:07:49,069 INFO L435 NwaCegarLoop]: 78 mSDtfsCounter, 47 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:49,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 264 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:07:49,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-24 01:07:49,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 93. [2024-11-24 01:07:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 54 states have (on average 1.2037037037037037) internal successors, (65), 54 states have internal predecessors, (65), 36 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-24 01:07:49,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 137 transitions. [2024-11-24 01:07:49,111 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 137 transitions. Word has length 119 [2024-11-24 01:07:49,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:07:49,113 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 137 transitions. [2024-11-24 01:07:49,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 1 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-24 01:07:49,114 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 137 transitions. [2024-11-24 01:07:49,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 01:07:49,116 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:49,116 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:49,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:07:49,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:07:49,317 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:49,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:49,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1847668821, now seen corresponding path program 1 times [2024-11-24 01:07:49,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:07:49,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214076890] [2024-11-24 01:07:49,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:49,319 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:07:49,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:07:49,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:07:49,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-24 01:07:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:49,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:07:49,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:07:50,650 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 317 proven. 21 refuted. 0 times theorem prover too weak. 274 trivial. 0 not checked. [2024-11-24 01:07:50,651 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:07:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 30 proven. 21 refuted. 0 times theorem prover too weak. 561 trivial. 0 not checked. [2024-11-24 01:07:51,595 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 01:07:51,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214076890] [2024-11-24 01:07:51,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214076890] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:07:51,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-24 01:07:51,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 14 [2024-11-24 01:07:51,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168847089] [2024-11-24 01:07:51,596 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-24 01:07:51,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-24 01:07:51,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 01:07:51,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-24 01:07:51,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-24 01:07:51,599 INFO L87 Difference]: Start difference. First operand 93 states and 137 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-24 01:07:55,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:07:55,055 INFO L93 Difference]: Finished difference Result 273 states and 392 transitions. [2024-11-24 01:07:55,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 01:07:55,056 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) Word has length 120 [2024-11-24 01:07:55,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:07:55,064 INFO L225 Difference]: With dead ends: 273 [2024-11-24 01:07:55,064 INFO L226 Difference]: Without dead ends: 219 [2024-11-24 01:07:55,065 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2024-11-24 01:07:55,066 INFO L435 NwaCegarLoop]: 70 mSDtfsCounter, 233 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:07:55,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 381 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-24 01:07:55,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-24 01:07:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 161. [2024-11-24 01:07:55,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 101 states have (on average 1.2178217821782178) internal successors, (123), 101 states have internal predecessors, (123), 54 states have call successors, (54), 5 states have call predecessors, (54), 5 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-24 01:07:55,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 231 transitions. [2024-11-24 01:07:55,153 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 231 transitions. Word has length 120 [2024-11-24 01:07:55,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:07:55,157 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 231 transitions. [2024-11-24 01:07:55,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 4 states have call successors, (36), 3 states have call predecessors, (36), 5 states have return successors, (36), 4 states have call predecessors, (36), 4 states have call successors, (36) [2024-11-24 01:07:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 231 transitions. [2024-11-24 01:07:55,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-24 01:07:55,165 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:07:55,165 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:07:55,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-24 01:07:55,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:07:55,366 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:07:55,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:07:55,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1767240105, now seen corresponding path program 1 times [2024-11-24 01:07:55,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 01:07:55,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [689786114] [2024-11-24 01:07:55,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:07:55,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 01:07:55,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 01:07:55,371 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 01:07:55,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29b1b760-379f-4d33-a5ec-8a6f0b297dfa/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-24 01:07:55,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:07:55,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-24 01:07:55,642 INFO L279 TraceCheckSpWp]: Computing forward predicates...