./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB --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 8e493bb9dfb1e4026bad014b506150c14522bad4ce88bea6356ffab3296ecf60 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:21:14,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:21:14,370 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:21:14,375 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:21:14,375 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:21:14,408 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:21:14,409 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:21:14,409 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:21:14,410 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:21:14,410 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:21:14,410 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:21:14,410 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:21:14,410 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:21:14,411 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:21:14,411 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:21:14,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:21:14,411 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:21:14,411 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:21:14,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:21:14,412 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:21:14,412 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:21:14,412 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:21:14,412 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:21:14,412 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:21:14,413 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:21:14,413 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:21:14,413 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:21:14,413 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:21:14,413 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:21:14,413 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:21:14,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:21:14,414 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:21:14,414 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:21:14,414 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:21:14,414 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:21:14,414 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:21:14,415 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:21:14,415 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:21:14,415 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:21:14,415 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:21:14,415 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:21:14,415 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:21:14,416 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:21:14,416 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:21:14,416 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:21:14,416 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:21:14,416 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:21:14,416 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:21:14,416 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_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 8e493bb9dfb1e4026bad014b506150c14522bad4ce88bea6356ffab3296ecf60 [2024-11-28 02:21:14,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:21:14,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:21:14,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:21:14,781 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:21:14,782 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:21:14,783 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i [2024-11-28 02:21:18,403 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data/056ac80a9/28f21b656e3b46d0b7f676352ff19272/FLAG48c2c6595 [2024-11-28 02:21:18,721 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:21:18,722 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i [2024-11-28 02:21:18,731 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data/056ac80a9/28f21b656e3b46d0b7f676352ff19272/FLAG48c2c6595 [2024-11-28 02:21:18,749 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data/056ac80a9/28f21b656e3b46d0b7f676352ff19272 [2024-11-28 02:21:18,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:21:18,754 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:21:18,756 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:21:18,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:21:18,762 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:21:18,763 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:21:18" (1/1) ... [2024-11-28 02:21:18,764 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436c8fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:18, skipping insertion in model container [2024-11-28 02:21:18,764 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:21:18" (1/1) ... [2024-11-28 02:21:18,786 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:21:18,963 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_94da41a5-12ca-4dfd-960e-c039f4c07dca/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i[915,928] [2024-11-28 02:21:19,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:21:19,061 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:21:19,075 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_94da41a5-12ca-4dfd-960e-c039f4c07dca/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i[915,928] [2024-11-28 02:21:19,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:21:19,118 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:21:19,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19 WrapperNode [2024-11-28 02:21:19,119 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:21:19,120 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:21:19,120 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:21:19,121 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:21:19,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,147 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,212 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-28 02:21:19,212 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:21:19,213 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:21:19,213 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:21:19,213 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:21:19,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,224 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,227 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,244 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]. [2024-11-28 02:21:19,244 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,244 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,251 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,252 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,262 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:21:19,263 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:21:19,263 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:21:19,263 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:21:19,264 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (1/1) ... [2024-11-28 02:21:19,279 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:21:19,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:21:19,320 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:21:19,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:21:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:21:19,361 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:21:19,361 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:21:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:21:19,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:21:19,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:21:19,468 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:21:19,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:21:19,836 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-28 02:21:19,836 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:21:19,849 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:21:19,850 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:21:19,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:21:19 BoogieIcfgContainer [2024-11-28 02:21:19,850 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:21:19,854 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:21:19,854 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:21:19,860 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:21:19,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:21:18" (1/3) ... [2024-11-28 02:21:19,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a97fde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:21:19, skipping insertion in model container [2024-11-28 02:21:19,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:19" (2/3) ... [2024-11-28 02:21:19,862 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a97fde0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:21:19, skipping insertion in model container [2024-11-28 02:21:19,862 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:21:19" (3/3) ... [2024-11-28 02:21:19,864 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-73.i [2024-11-28 02:21:19,882 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:21:19,883 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-73.i that has 2 procedures, 40 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:21:19,956 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:21:19,971 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;@1fb8bd9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:21:19,971 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:21:19,976 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:21:19,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:21:19,985 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:19,986 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:19,987 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:19,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:19,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1151011660, now seen corresponding path program 1 times [2024-11-28 02:21:20,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:20,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689222902] [2024-11-28 02:21:20,008 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:20,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:20,321 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 02:21:20,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:20,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689222902] [2024-11-28 02:21:20,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689222902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:21:20,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645694174] [2024-11-28 02:21:20,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:20,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:21:20,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:21:20,326 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:21:20,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:21:20,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:20,530 INFO L256 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:21:20,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:21:20,579 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-28 02:21:20,579 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:21:20,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645694174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:20,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:21:20,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:21:20,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95310620] [2024-11-28 02:21:20,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:20,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:21:20,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:20,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:21:20,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:21:20,625 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:21:20,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:20,654 INFO L93 Difference]: Finished difference Result 77 states and 118 transitions. [2024-11-28 02:21:20,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:21:20,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2024-11-28 02:21:20,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:20,666 INFO L225 Difference]: With dead ends: 77 [2024-11-28 02:21:20,666 INFO L226 Difference]: Without dead ends: 36 [2024-11-28 02:21:20,670 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:21:20,674 INFO L435 NwaCegarLoop]: 53 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, 53 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 [2024-11-28 02:21:20,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:21:20,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-28 02:21:20,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-28 02:21:20,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:21:20,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-28 02:21:20,724 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 64 [2024-11-28 02:21:20,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:20,724 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-28 02:21:20,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:21:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-28 02:21:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:21:20,727 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:20,728 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:20,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:21:20,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:21:20,929 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:20,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:20,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1389946442, now seen corresponding path program 1 times [2024-11-28 02:21:20,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:20,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435117943] [2024-11-28 02:21:20,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:20,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 02:21:21,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:21,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435117943] [2024-11-28 02:21:21,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1435117943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:21,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:21,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:21:21,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269695230] [2024-11-28 02:21:21,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:21,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:21:21,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:21,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:21:21,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:21:21,655 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 02:21:21,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:21,943 INFO L93 Difference]: Finished difference Result 104 states and 143 transitions. [2024-11-28 02:21:21,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:21:21,944 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2024-11-28 02:21:21,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:21,946 INFO L225 Difference]: With dead ends: 104 [2024-11-28 02:21:21,946 INFO L226 Difference]: Without dead ends: 71 [2024-11-28 02:21:21,946 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:21:21,950 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 43 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:21,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 154 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 02:21:21,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-28 02:21:21,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 58. [2024-11-28 02:21:21,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 02:21:21,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2024-11-28 02:21:21,968 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 64 [2024-11-28 02:21:21,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:21,969 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2024-11-28 02:21:21,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 5 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 02:21:21,969 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2024-11-28 02:21:21,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 02:21:21,971 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:21,971 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:21,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:21:21,971 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:21,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:21,972 INFO L85 PathProgramCache]: Analyzing trace with hash 1641611241, now seen corresponding path program 1 times [2024-11-28 02:21:21,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:21,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261443395] [2024-11-28 02:21:21,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:21,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:22,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:22,100 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 02:21:22,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:21:22,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261443395] [2024-11-28 02:21:22,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261443395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:22,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:22,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:22,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741791758] [2024-11-28 02:21:22,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:22,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:22,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:21:22,102 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:22,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:22,107 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 02:21:22,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:22,161 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2024-11-28 02:21:22,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:22,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-11-28 02:21:22,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:22,163 INFO L225 Difference]: With dead ends: 103 [2024-11-28 02:21:22,163 INFO L226 Difference]: Without dead ends: 70 [2024-11-28 02:21:22,164 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:22,169 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:22,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 98 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:21:22,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-28 02:21:22,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 59. [2024-11-28 02:21:22,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 38 states have internal predecessors, (44), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 02:21:22,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2024-11-28 02:21:22,193 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 65 [2024-11-28 02:21:22,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:22,194 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2024-11-28 02:21:22,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 02:21:22,194 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2024-11-28 02:21:22,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 02:21:22,198 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:22,198 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:22,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:21:22,198 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:22,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:22,199 INFO L85 PathProgramCache]: Analyzing trace with hash 832264615, now seen corresponding path program 1 times [2024-11-28 02:21:22,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:21:22,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110452272] [2024-11-28 02:21:22,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:22,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:21:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:21:22,284 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:21:22,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:21:22,402 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:21:22,402 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:21:22,404 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:21:22,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:21:22,411 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-28 02:21:22,510 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:21:22,514 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:21:22 BoogieIcfgContainer [2024-11-28 02:21:22,518 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:21:22,519 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:21:22,519 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:21:22,519 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:21:22,520 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:21:19" (3/4) ... [2024-11-28 02:21:22,524 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:21:22,525 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:21:22,526 INFO L158 Benchmark]: Toolchain (without parser) took 3772.30ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 54.9MB in the end (delta: 35.2MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-11-28 02:21:22,526 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:21:22,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.05ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 77.4MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:21:22,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 91.78ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:21:22,527 INFO L158 Benchmark]: Boogie Preprocessor took 49.39ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.1MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:21:22,528 INFO L158 Benchmark]: RCFGBuilder took 587.70ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 57.9MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:21:22,528 INFO L158 Benchmark]: TraceAbstraction took 2664.24ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 54.9MB in the end (delta: 2.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2024-11-28 02:21:22,528 INFO L158 Benchmark]: Witness Printer took 6.31ms. Allocated memory is still 117.4MB. Free memory was 54.9MB in the beginning and 54.9MB in the end (delta: 14.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:21:22,533 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 83.9MB. Free memory is still 38.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.05ms. Allocated memory is still 117.4MB. Free memory was 90.1MB in the beginning and 77.4MB in the end (delta: 12.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 91.78ms. Allocated memory is still 117.4MB. Free memory was 77.4MB in the beginning and 75.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.39ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.1MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 587.70ms. Allocated memory is still 117.4MB. Free memory was 72.1MB in the beginning and 57.9MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2664.24ms. Allocated memory is still 117.4MB. Free memory was 57.3MB in the beginning and 54.9MB in the end (delta: 2.4MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 6.31ms. Allocated memory is still 117.4MB. Free memory was 54.9MB in the beginning and 54.9MB in the end (delta: 14.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 24, overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 81, overapproximation of someBinaryDOUBLEComparisonOperation at line 65. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 5.5; [L23] unsigned char var_1_6 = 1; [L24] double var_1_7 = -0.41; [L25] unsigned char var_1_8 = 25; [L26] unsigned char var_1_9 = 100; [L27] unsigned char var_1_10 = 1; [L28] unsigned char var_1_12 = 10; [L29] signed short int var_1_13 = -64; [L30] signed long int var_1_14 = 10; [L31] signed short int var_1_15 = -1; [L32] unsigned char last_1_var_1_8 = 25; [L33] signed long int last_1_var_1_14 = 10; VAL [isInitial=0, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L85] isInitial = 1 [L86] FCALL initially() [L87] int k_loop; [L88] k_loop = 0 VAL [isInitial=1, k_loop=0, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L88] COND TRUE k_loop < 1 VAL [isInitial=1, k_loop=0, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L89] CALL updateLastVariables() [L77] last_1_var_1_8 = var_1_8 [L78] last_1_var_1_14 = var_1_14 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L89] RET updateLastVariables() [L90] CALL updateVariables() [L61] var_1_6 = __VERIFIER_nondet_uchar() [L62] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L62] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_8=25, var_1_9=100] [L63] CALL assume_abort_if_not(var_1_6 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L63] RET assume_abort_if_not(var_1_6 <= 1) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L64] var_1_7 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L65] RET assume_abort_if_not((var_1_7 >= -922337.2036854765600e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 9223372.036854765600e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=100] [L66] var_1_9 = __VERIFIER_nondet_uchar() [L67] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25] [L67] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25] [L68] CALL assume_abort_if_not(var_1_9 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L68] RET assume_abort_if_not(var_1_9 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=1, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L69] var_1_10 = __VERIFIER_nondet_uchar() [L70] CALL assume_abort_if_not(var_1_10 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L70] RET assume_abort_if_not(var_1_10 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L71] CALL assume_abort_if_not(var_1_10 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L71] RET assume_abort_if_not(var_1_10 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=10, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L72] var_1_12 = __VERIFIER_nondet_uchar() [L73] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L73] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L74] CALL assume_abort_if_not(var_1_12 <= 254) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L74] RET assume_abort_if_not(var_1_12 <= 254) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L90] RET updateVariables() [L91] CALL step() [L37] signed long int stepLocal_0 = (((last_1_var_1_8) > ((last_1_var_1_14 + last_1_var_1_14))) ? (last_1_var_1_8) : ((last_1_var_1_14 + last_1_var_1_14))); VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, stepLocal_0=25, var_1_10=254, var_1_12=4, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L38] COND TRUE last_1_var_1_14 <= stepLocal_0 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=11/2, var_1_6=1, var_1_8=25, var_1_9=254] [L39] COND FALSE !(! var_1_6) [L42] var_1_1 = var_1_7 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=259, var_1_6=1, var_1_7=259, var_1_8=25, var_1_9=254] [L45] COND TRUE \read(var_1_6) [L46] var_1_8 = ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=-64, var_1_14=10, var_1_15=-1, var_1_1=259, var_1_6=1, var_1_7=259, var_1_8=254, var_1_9=254] [L52] COND TRUE (9.99999999999995E13f + var_1_1) >= var_1_1 [L53] var_1_13 = (-4 + var_1_10) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=250, var_1_14=10, var_1_15=-1, var_1_1=259, var_1_6=1, var_1_7=259, var_1_8=254, var_1_9=254] [L57] var_1_15 = var_1_12 [L58] var_1_14 = var_1_15 VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=250, var_1_14=4, var_1_15=4, var_1_1=259, var_1_6=1, var_1_7=259, var_1_8=254, var_1_9=254] [L91] RET step() [L92] CALL, EXPR property() [L81-L82] return (((((last_1_var_1_14 <= ((((last_1_var_1_8) > ((last_1_var_1_14 + last_1_var_1_14))) ? (last_1_var_1_8) : ((last_1_var_1_14 + last_1_var_1_14))))) ? ((! var_1_6) ? (var_1_1 == ((double) var_1_7)) : (var_1_1 == ((double) var_1_7))) : 1) && (var_1_6 ? (var_1_8 == ((unsigned char) ((((var_1_9) > (var_1_10)) ? (var_1_9) : (var_1_10))))) : ((var_1_1 < (var_1_1 + var_1_7)) ? (var_1_8 == ((unsigned char) var_1_12)) : 1))) && (((9.99999999999995E13f + var_1_1) >= var_1_1) ? (var_1_13 == ((signed short int) (-4 + var_1_10))) : (var_1_13 == ((signed short int) (((((var_1_9) < (8)) ? (var_1_9) : (8))) - 32))))) && (var_1_14 == ((signed long int) var_1_15))) && (var_1_15 == ((signed short int) var_1_12)) ; VAL [\result=0, isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=250, var_1_14=4, var_1_15=4, var_1_1=259, var_1_6=1, var_1_7=259, var_1_8=254, var_1_9=254] [L92] RET, EXPR property() [L92] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=250, var_1_14=4, var_1_15=4, var_1_1=259, var_1_6=1, var_1_7=259, var_1_8=254, var_1_9=254] [L19] reach_error() VAL [isInitial=1, last_1_var_1_14=10, last_1_var_1_8=25, var_1_10=254, var_1_12=4, var_1_13=250, var_1_14=4, var_1_15=4, var_1_1=259, var_1_6=1, var_1_7=259, var_1_8=254, var_1_9=254] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 57 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 305 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 148 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 157 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=3, InterpolantAutomatonStates: 10, 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, 24 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 322 NumberOfCodeBlocks, 322 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 317 SizeOfPredicates, 0 NumberOfNonLiveVariables, 166 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 560/576 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 [2024-11-28 02:21:22,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB --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 8e493bb9dfb1e4026bad014b506150c14522bad4ce88bea6356ffab3296ecf60 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:21:25,734 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:21:25,884 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:21:25,896 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:21:25,920 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:21:25,981 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:21:25,983 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:21:25,984 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:21:25,984 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:21:25,985 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:21:25,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:21:25,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:21:25,987 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:21:25,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:21:25,987 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:21:25,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:21:25,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:21:25,988 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:21:25,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:21:25,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:21:25,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:21:25,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:21:25,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:21:25,990 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:21:25,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:21:25,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:21:25,991 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:21:25,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:21:25,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:21:25,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:21:25,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:21:25,991 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:21:25,991 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:21:25,992 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:21:25,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:21:25,993 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:21:25,993 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:21:25,993 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:21:25,993 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:21:25,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:21:25,994 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:21:25,994 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_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 8e493bb9dfb1e4026bad014b506150c14522bad4ce88bea6356ffab3296ecf60 [2024-11-28 02:21:26,403 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:21:26,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:21:26,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:21:26,417 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:21:26,417 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:21:26,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i [2024-11-28 02:21:30,100 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data/994694127/a227330444864677832edc7e5395afb4/FLAGd71267c2e [2024-11-28 02:21:30,470 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:21:30,479 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i [2024-11-28 02:21:30,499 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data/994694127/a227330444864677832edc7e5395afb4/FLAGd71267c2e [2024-11-28 02:21:30,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/data/994694127/a227330444864677832edc7e5395afb4 [2024-11-28 02:21:30,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:21:30,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:21:30,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:21:30,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:21:30,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:21:30,572 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:30,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1dad57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30, skipping insertion in model container [2024-11-28 02:21:30,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:30,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:21:30,818 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_94da41a5-12ca-4dfd-960e-c039f4c07dca/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i[915,928] [2024-11-28 02:21:30,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:21:30,907 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:21:30,925 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_94da41a5-12ca-4dfd-960e-c039f4c07dca/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-73.i[915,928] [2024-11-28 02:21:30,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:21:30,975 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:21:30,976 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30 WrapperNode [2024-11-28 02:21:30,976 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:21:30,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:21:30,978 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:21:30,978 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:21:30,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:30,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,033 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 90 [2024-11-28 02:21:31,034 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:21:31,035 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:21:31,035 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:21:31,035 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:21:31,048 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,058 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,087 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]. [2024-11-28 02:21:31,087 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,087 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,105 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,111 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,118 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,123 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,128 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,132 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:21:31,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:21:31,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:21:31,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:21:31,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (1/1) ... [2024-11-28 02:21:31,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:21:31,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:21:31,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:21:31,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:21:31,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:21:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:21:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:21:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:21:31,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:21:31,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:21:31,327 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:21:31,329 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:21:34,393 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-28 02:21:34,393 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:21:34,405 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:21:34,405 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:21:34,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:21:34 BoogieIcfgContainer [2024-11-28 02:21:34,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:21:34,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:21:34,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:21:34,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:21:34,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:21:30" (1/3) ... [2024-11-28 02:21:34,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752c4055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:21:34, skipping insertion in model container [2024-11-28 02:21:34,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:21:30" (2/3) ... [2024-11-28 02:21:34,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@752c4055 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:21:34, skipping insertion in model container [2024-11-28 02:21:34,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:21:34" (3/3) ... [2024-11-28 02:21:34,419 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-1loop_file-73.i [2024-11-28 02:21:34,438 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:21:34,440 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-1loop_file-73.i that has 2 procedures, 40 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:21:34,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:21:34,522 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;@42de384, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:21:34,523 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:21:34,527 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:21:34,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:21:34,537 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:34,538 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:34,539 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:34,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:34,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1151011660, now seen corresponding path program 1 times [2024-11-28 02:21:34,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:21:34,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1668299286] [2024-11-28 02:21:34,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:34,559 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 [2024-11-28 02:21:34,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:21:34,562 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:21:34,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:34,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:21:34,891 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:21:34,932 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2024-11-28 02:21:34,932 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:21:34,936 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:21:34,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1668299286] [2024-11-28 02:21:34,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1668299286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:34,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:34,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:21:34,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932679851] [2024-11-28 02:21:34,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:34,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:21:34,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:21:34,996 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:21:34,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:21:34,999 INFO L87 Difference]: Start difference. First operand has 40 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 29 states have internal predecessors, (38), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:21:35,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:35,024 INFO L93 Difference]: Finished difference Result 77 states and 118 transitions. [2024-11-28 02:21:35,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:21:35,026 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 64 [2024-11-28 02:21:35,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:35,034 INFO L225 Difference]: With dead ends: 77 [2024-11-28 02:21:35,034 INFO L226 Difference]: Without dead ends: 36 [2024-11-28 02:21:35,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:21:35,042 INFO L435 NwaCegarLoop]: 53 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, 53 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 [2024-11-28 02:21:35,043 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:21:35,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-28 02:21:35,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-28 02:21:35,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:21:35,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 49 transitions. [2024-11-28 02:21:35,092 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 49 transitions. Word has length 64 [2024-11-28 02:21:35,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:35,095 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 49 transitions. [2024-11-28 02:21:35,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-28 02:21:35,096 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 49 transitions. [2024-11-28 02:21:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-28 02:21:35,100 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:35,100 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:35,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:35,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:35,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:35,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:35,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1389946442, now seen corresponding path program 1 times [2024-11-28 02:21:35,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:21:35,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409181099] [2024-11-28 02:21:35,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:35,304 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 02:21:35,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:21:35,307 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:21:35,310 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:35,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 02:21:35,644 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:21:36,787 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 02:21:36,788 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:21:36,788 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:21:36,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409181099] [2024-11-28 02:21:36,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409181099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:36,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:36,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:21:36,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249978383] [2024-11-28 02:21:36,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:36,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:21:36,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:21:36,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:21:36,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:21:36,793 INFO L87 Difference]: Start difference. First operand 36 states and 49 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 02:21:38,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:38,664 INFO L93 Difference]: Finished difference Result 106 states and 146 transitions. [2024-11-28 02:21:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:21:38,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 64 [2024-11-28 02:21:38,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:38,677 INFO L225 Difference]: With dead ends: 106 [2024-11-28 02:21:38,678 INFO L226 Difference]: Without dead ends: 73 [2024-11-28 02:21:38,678 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:21:38,679 INFO L435 NwaCegarLoop]: 48 mSDtfsCounter, 38 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:38,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 158 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 02:21:38,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-28 02:21:38,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 58. [2024-11-28 02:21:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 02:21:38,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 79 transitions. [2024-11-28 02:21:38,702 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 79 transitions. Word has length 64 [2024-11-28 02:21:38,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:38,702 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 79 transitions. [2024-11-28 02:21:38,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 02:21:38,703 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2024-11-28 02:21:38,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 02:21:38,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:38,705 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:38,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:38,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:38,909 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:38,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:38,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1641611241, now seen corresponding path program 1 times [2024-11-28 02:21:38,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:21:38,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578844893] [2024-11-28 02:21:38,910 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:38,911 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 [2024-11-28 02:21:38,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:21:38,915 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:21:38,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:39,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:39,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 02:21:39,291 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:21:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2024-11-28 02:21:39,319 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:21:39,320 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:21:39,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578844893] [2024-11-28 02:21:39,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578844893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:21:39,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:21:39,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:21:39,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582039619] [2024-11-28 02:21:39,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:21:39,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:21:39,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:21:39,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:21:39,324 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:39,324 INFO L87 Difference]: Start difference. First operand 58 states and 79 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 02:21:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:21:40,365 INFO L93 Difference]: Finished difference Result 103 states and 139 transitions. [2024-11-28 02:21:40,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:21:40,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 65 [2024-11-28 02:21:40,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:21:40,368 INFO L225 Difference]: With dead ends: 103 [2024-11-28 02:21:40,368 INFO L226 Difference]: Without dead ends: 70 [2024-11-28 02:21:40,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:21:40,369 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:21:40,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 97 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 02:21:40,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-28 02:21:40,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 59. [2024-11-28 02:21:40,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 38 states have (on average 1.1578947368421053) internal successors, (44), 38 states have internal predecessors, (44), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-28 02:21:40,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 80 transitions. [2024-11-28 02:21:40,399 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 80 transitions. Word has length 65 [2024-11-28 02:21:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:21:40,399 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 80 transitions. [2024-11-28 02:21:40,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2024-11-28 02:21:40,400 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2024-11-28 02:21:40,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-28 02:21:40,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:21:40,405 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:21:40,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:40,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:40,606 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:21:40,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:21:40,607 INFO L85 PathProgramCache]: Analyzing trace with hash 832264615, now seen corresponding path program 1 times [2024-11-28 02:21:40,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:21:40,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572741878] [2024-11-28 02:21:40,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:21:40,608 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 [2024-11-28 02:21:40,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:21:40,613 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:21:40,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_94da41a5-12ca-4dfd-960e-c039f4c07dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:21:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:21:40,924 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:21:40,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:23:46,757 WARN L286 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:27:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 60 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-28 02:27:02,235 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:28:53,127 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:29:08,880 WARN L286 SmtUtils]: Spent 6.38s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:29:16,984 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:30:08,231 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:30:15,817 WARN L286 SmtUtils]: Spent 7.59s on a formula simplification. DAG size of input: 7 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:30:23,872 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:30:31,849 WARN L286 SmtUtils]: Spent 7.98s on a formula simplification. DAG size of input: 5 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:30:39,770 WARN L286 SmtUtils]: Spent 7.92s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:30:45,220 WARN L286 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:30:50,371 WARN L286 SmtUtils]: Spent 5.15s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:30:58,436 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:31:06,497 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:31:14,553 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:31:22,611 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:31:30,676 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:31:38,743 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:31:46,808 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:31:54,502 WARN L286 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 6 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:32:02,602 WARN L286 SmtUtils]: Spent 8.10s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:32:10,665 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:32:18,727 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:32:31,413 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:32:39,471 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:32:47,262 WARN L286 SmtUtils]: Spent 7.79s on a formula simplification. DAG size of input: 7 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:32:55,319 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:33:05,505 WARN L286 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:33:13,109 WARN L286 SmtUtils]: Spent 7.60s on a formula simplification. DAG size of input: 7 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:33:21,171 WARN L286 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:33:29,233 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:33:56,751 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:34:04,591 WARN L286 SmtUtils]: Spent 7.84s on a formula simplification. DAG size of input: 7 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:34:12,654 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:34:20,715 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:34:28,779 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:34:41,230 WARN L286 SmtUtils]: Spent 7.72s on a formula simplification. DAG size of input: 6 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:34:49,321 WARN L286 SmtUtils]: Spent 7.96s on a formula simplification. DAG size of input: 6 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:34:57,382 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:35:08,947 WARN L286 SmtUtils]: Spent 7.87s on a formula simplification. DAG size of input: 6 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:35:17,005 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:35:25,066 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:35:32,615 WARN L286 SmtUtils]: Spent 7.55s on a formula simplification. DAG size of input: 7 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:35:44,246 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:35:51,662 WARN L286 SmtUtils]: Spent 7.42s on a formula simplification. DAG size of input: 7 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:35:59,725 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:36:07,789 WARN L286 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:36:15,073 WARN L286 SmtUtils]: Spent 7.28s on a formula simplification. DAG size of input: 9 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-28 02:36:27,026 WARN L286 SmtUtils]: Spent 7.70s on a formula simplification. DAG size of input: 6 DAG size of output: 1 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)