./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:07:23,228 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:07:23,335 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 14:07:23,340 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:07:23,341 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:07:23,383 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:07:23,384 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:07:23,384 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:07:23,384 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:07:23,385 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:07:23,385 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:07:23,385 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:07:23,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:07:23,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:07:23,386 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:07:23,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:07:23,386 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:07:23,387 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:07:23,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:07:23,388 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:07:23,388 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:07:23,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:07:23,388 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:07:23,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:07:23,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:07:23,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:07:23,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:07:23,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:07:23,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 14:07:23,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 14:07:23,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:07:23,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:07:23,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:07:23,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:07:23,389 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_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2024-11-13 14:07:23,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:07:23,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:07:23,797 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:07:23,798 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:07:23,799 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:07:23,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c Unable to find full path for "g++" [2024-11-13 14:07:26,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:07:26,407 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:07:26,411 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2024-11-13 14:07:26,425 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/data/9f2e8557f/29a450681e1a463baa9f3fba944bf8b3/FLAG472a54bac [2024-11-13 14:07:26,447 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/data/9f2e8557f/29a450681e1a463baa9f3fba944bf8b3 [2024-11-13 14:07:26,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:07:26,452 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:07:26,455 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:07:26,455 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:07:26,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:07:26,464 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:26,465 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68bef5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26, skipping insertion in model container [2024-11-13 14:07:26,465 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:26,495 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:07:26,703 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_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2024-11-13 14:07:26,709 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_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2024-11-13 14:07:26,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:07:26,798 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:07:26,815 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_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2024-11-13 14:07:26,820 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_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2024-11-13 14:07:26,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:07:26,896 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:07:26,897 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26 WrapperNode [2024-11-13 14:07:26,899 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:07:26,900 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:07:26,900 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:07:26,900 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:07:26,908 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:26,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:26,954 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-13 14:07:26,955 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:07:26,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:07:26,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:07:26,956 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:07:26,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:26,969 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:26,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:27,000 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]. [2024-11-13 14:07:27,000 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:27,000 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:27,013 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:27,021 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:27,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:27,031 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:27,036 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:07:27,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:07:27,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:07:27,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:07:27,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (1/1) ... [2024-11-13 14:07:27,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:07:27,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:07:27,079 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:07:27,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:07:27,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:07:27,123 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-13 14:07:27,123 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-13 14:07:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 14:07:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:07:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:07:27,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 14:07:27,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 14:07:27,234 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:07:27,237 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:07:27,848 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-13 14:07:27,848 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:07:27,859 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:07:27,860 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 14:07:27,860 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:07:27 BoogieIcfgContainer [2024-11-13 14:07:27,860 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:07:27,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:07:27,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:07:27,868 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:07:27,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:07:26" (1/3) ... [2024-11-13 14:07:27,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3ca361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:07:27, skipping insertion in model container [2024-11-13 14:07:27,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:26" (2/3) ... [2024-11-13 14:07:27,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e3ca361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:07:27, skipping insertion in model container [2024-11-13 14:07:27,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:07:27" (3/3) ... [2024-11-13 14:07:27,871 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2024-11-13 14:07:27,887 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:07:27,889 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG square_3+soft_float_5a.c.cil.c that has 3 procedures, 84 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 14:07:27,952 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:07:27,969 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;@2208958c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:07:27,969 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 14:07:27,974 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 77 states have internal predecessors, (114), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:07:27,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 14:07:27,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:07:27,982 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:07:27,983 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:07:27,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:07:27,989 INFO L85 PathProgramCache]: Analyzing trace with hash -929888677, now seen corresponding path program 1 times [2024-11-13 14:07:27,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 14:07:27,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536580594] [2024-11-13 14:07:27,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:07:27,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 14:07:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:07:28,091 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:07:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:07:28,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 14:07:28,122 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:07:28,123 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 14:07:28,125 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 14:07:28,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 14:07:28,130 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 14:07:28,142 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:07:28,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:07:28 BoogieIcfgContainer [2024-11-13 14:07:28,146 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:07:28,146 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:07:28,146 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:07:28,147 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:07:28,147 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:07:27" (3/4) ... [2024-11-13 14:07:28,149 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 14:07:28,150 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:07:28,151 INFO L158 Benchmark]: Toolchain (without parser) took 1698.55ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 40.5MB in the end (delta: 51.8MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 14:07:28,151 INFO L158 Benchmark]: CDTParser took 1.32ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:28,152 INFO L158 Benchmark]: CACSL2BoogieTranslator took 444.52ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:07:28,152 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.74ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:28,152 INFO L158 Benchmark]: Boogie Preprocessor took 81.17ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 74.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:28,153 INFO L158 Benchmark]: RCFGBuilder took 822.83ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 53.7MB in the end (delta: 20.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 14:07:28,153 INFO L158 Benchmark]: TraceAbstraction took 282.84ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 40.5MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:07:28,153 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 117.4MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:28,156 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.32ms. Allocated memory is still 83.9MB. Free memory is still 40.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 444.52ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.74ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 81.17ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 74.1MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 822.83ms. Allocated memory is still 117.4MB. Free memory was 74.1MB in the beginning and 53.7MB in the end (delta: 20.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 282.84ms. Allocated memory is still 117.4MB. Free memory was 52.9MB in the beginning and 40.5MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 117.4MB. Free memory is still 40.5MB. 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: 48]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 14:07:28,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 14:07:30,943 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 14:07:31,065 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 14:07:31,074 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 14:07:31,074 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 14:07:31,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 14:07:31,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 14:07:31,131 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 14:07:31,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 14:07:31,132 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 14:07:31,133 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 14:07:31,133 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 14:07:31,133 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 14:07:31,133 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 14:07:31,134 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 14:07:31,134 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 14:07:31,134 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 14:07:31,134 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 14:07:31,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 14:07:31,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 14:07:31,134 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 14:07:31,134 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 14:07:31,134 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 14:07:31,135 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 14:07:31,135 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:07:31,136 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 14:07:31,136 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 14:07:31,137 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_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2024-11-13 14:07:31,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 14:07:31,483 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 14:07:31,486 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 14:07:31,487 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 14:07:31,488 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 14:07:31,489 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c Unable to find full path for "g++" [2024-11-13 14:07:33,462 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 14:07:33,741 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 14:07:33,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2024-11-13 14:07:33,763 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/data/e7d252c0f/5f3fb9abe79448fea4e28d9054506ce1/FLAG66977a9f1 [2024-11-13 14:07:33,781 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/data/e7d252c0f/5f3fb9abe79448fea4e28d9054506ce1 [2024-11-13 14:07:33,783 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 14:07:33,785 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 14:07:33,787 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 14:07:33,787 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 14:07:33,792 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 14:07:33,793 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:07:33" (1/1) ... [2024-11-13 14:07:33,794 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3af5ee97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:33, skipping insertion in model container [2024-11-13 14:07:33,794 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 02:07:33" (1/1) ... [2024-11-13 14:07:33,817 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 14:07:33,990 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_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2024-11-13 14:07:33,996 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_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2024-11-13 14:07:34,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:07:34,054 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 14:07:34,068 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_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2024-11-13 14:07:34,070 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_345dd840-e2bb-475e-99e0-ea7e02c36441/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2024-11-13 14:07:34,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 14:07:34,124 INFO L204 MainTranslator]: Completed translation [2024-11-13 14:07:34,125 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34 WrapperNode [2024-11-13 14:07:34,125 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 14:07:34,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 14:07:34,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 14:07:34,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 14:07:34,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,150 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,172 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-11-13 14:07:34,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 14:07:34,173 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 14:07:34,173 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 14:07:34,173 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 14:07:34,182 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,186 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,197 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]. [2024-11-13 14:07:34,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,205 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,209 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,211 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,213 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,216 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 14:07:34,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 14:07:34,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 14:07:34,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 14:07:34,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (1/1) ... [2024-11-13 14:07:34,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 14:07:34,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 14:07:34,251 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 14:07:34,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 14:07:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 14:07:34,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 14:07:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-13 14:07:34,290 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-13 14:07:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 14:07:34,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 14:07:34,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 14:07:34,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 14:07:34,414 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 14:07:34,417 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 14:07:39,147 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-13 14:07:39,147 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 14:07:39,158 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 14:07:39,158 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 14:07:39,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:07:39 BoogieIcfgContainer [2024-11-13 14:07:39,159 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 14:07:39,161 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 14:07:39,161 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 14:07:39,166 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 14:07:39,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 02:07:33" (1/3) ... [2024-11-13 14:07:39,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297b1d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:07:39, skipping insertion in model container [2024-11-13 14:07:39,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 02:07:34" (2/3) ... [2024-11-13 14:07:39,167 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@297b1d8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 02:07:39, skipping insertion in model container [2024-11-13 14:07:39,167 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:07:39" (3/3) ... [2024-11-13 14:07:39,169 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2024-11-13 14:07:39,184 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 14:07:39,185 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG square_3+soft_float_5a.c.cil.c that has 3 procedures, 61 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 14:07:39,251 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 14:07:39,264 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;@3b96b90e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 14:07:39,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 14:07:39,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 14:07:39,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 14:07:39,276 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:07:39,277 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:07:39,277 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:07:39,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:07:39,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1912677092, now seen corresponding path program 1 times [2024-11-13 14:07:39,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:07:39,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045731354] [2024-11-13 14:07:39,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:07:39,297 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:07:39,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:07:39,301 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:07:39,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 14:07:39,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 14:07:39,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 14:07:39,887 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 14:07:39,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 14:07:39,913 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 14:07:39,913 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 14:07:39,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045731354] [2024-11-13 14:07:39,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045731354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 14:07:39,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 14:07:39,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 14:07:39,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895617786] [2024-11-13 14:07:39,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 14:07:39,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 14:07:39,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 14:07:39,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 14:07:39,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:07:39,946 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:07:39,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 14:07:39,972 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2024-11-13 14:07:39,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 14:07:39,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 14:07:39,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 14:07:39,982 INFO L225 Difference]: With dead ends: 117 [2024-11-13 14:07:39,982 INFO L226 Difference]: Without dead ends: 52 [2024-11-13 14:07:39,985 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 14:07:39,988 INFO L432 NwaCegarLoop]: 82 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, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 14:07:39,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 14:07:40,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-13 14:07:40,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-13 14:07:40,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 14:07:40,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-11-13 14:07:40,045 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2024-11-13 14:07:40,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 14:07:40,046 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-11-13 14:07:40,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 14:07:40,046 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2024-11-13 14:07:40,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 14:07:40,047 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 14:07:40,047 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 14:07:40,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 14:07:40,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:07:40,249 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 14:07:40,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 14:07:40,250 INFO L85 PathProgramCache]: Analyzing trace with hash 1912736674, now seen corresponding path program 1 times [2024-11-13 14:07:40,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 14:07:40,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1536407605] [2024-11-13 14:07:40,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 14:07:40,251 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:07:40,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 14:07:40,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 14:07:40,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 14:07:53,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:07:53,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 14:07:55,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 14:07:55,296 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 14:07:55,298 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 14:07:55,300 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 14:07:55,303 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 14:07:55,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-13 14:07:55,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 14:07:55,509 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 14:07:55,524 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 14:07:55,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 02:07:55 BoogieIcfgContainer [2024-11-13 14:07:55,527 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 14:07:55,528 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 14:07:55,528 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 14:07:55,529 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 14:07:55,529 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 02:07:39" (3/4) ... [2024-11-13 14:07:55,530 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 14:07:55,558 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 14:07:55,558 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 14:07:55,559 INFO L158 Benchmark]: Toolchain (without parser) took 21774.01ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 76.9MB in the end (delta: 15.2MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2024-11-13 14:07:55,559 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:55,559 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.69ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 76.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 14:07:55,560 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.76ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:55,560 INFO L158 Benchmark]: Boogie Preprocessor took 42.89ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:55,561 INFO L158 Benchmark]: RCFGBuilder took 4942.28ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 54.9MB in the end (delta: 17.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 14:07:55,561 INFO L158 Benchmark]: TraceAbstraction took 16366.30ms. Allocated memory is still 117.4MB. Free memory was 54.4MB in the beginning and 78.7MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:55,561 INFO L158 Benchmark]: Witness Printer took 29.91ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 76.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 14:07:55,563 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.69ms. Allocated memory is still 117.4MB. Free memory was 92.2MB in the beginning and 76.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.76ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.89ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 72.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 4942.28ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 54.9MB in the end (delta: 17.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 16366.30ms. Allocated memory is still 117.4MB. Free memory was 54.4MB in the beginning and 78.7MB in the end (delta: -24.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 29.91ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 76.9MB in the end (delta: 1.3MB). 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [result=1.398437261581421] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 16.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 13.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-13 14:07:55,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_345dd840-e2bb-475e-99e0-ea7e02c36441/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE