./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:52:23,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:52:23,158 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-24 00:52:23,169 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:52:23,171 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:52:23,199 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:52:23,200 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:52:23,200 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:52:23,201 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:52:23,201 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:52:23,201 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:52:23,201 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:52:23,202 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:52:23,202 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:52:23,202 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:52:23,202 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:52:23,202 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:52:23,203 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:52:23,203 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:52:23,203 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:52:23,203 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:52:23,203 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:52:23,203 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:52:23,204 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:52:23,204 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:52:23,204 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:52:23,204 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:52:23,204 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:52:23,204 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:52:23,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:52:23,205 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:52:23,205 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:52:23,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:23,205 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:52:23,205 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:52:23,206 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:52:23,206 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:52:23,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:23,206 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:52:23,206 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:52:23,206 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:52:23,206 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:52:23,206 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:52:23,206 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:52:23,207 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:52:23,207 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:52:23,207 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:52:23,207 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:52:23,207 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 [2024-11-24 00:52:23,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:52:23,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:52:23,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:52:23,530 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:52:23,530 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:52:23,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2024-11-24 00:52:26,817 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data/32b1817d3/9dc90b2c254748719b52ca4ad07102d4/FLAGd0bb0d2b9 [2024-11-24 00:52:27,194 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:52:27,195 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2024-11-24 00:52:27,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data/32b1817d3/9dc90b2c254748719b52ca4ad07102d4/FLAGd0bb0d2b9 [2024-11-24 00:52:27,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data/32b1817d3/9dc90b2c254748719b52ca4ad07102d4 [2024-11-24 00:52:27,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:52:27,229 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:52:27,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:52:27,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:52:27,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:52:27,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a32f885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27, skipping insertion in model container [2024-11-24 00:52:27,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,290 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:52:27,486 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c[1996,2009] [2024-11-24 00:52:27,493 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c[2390,2403] [2024-11-24 00:52:27,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:52:27,584 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:52:27,599 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c[1996,2009] [2024-11-24 00:52:27,601 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c[2390,2403] [2024-11-24 00:52:27,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:52:27,658 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:52:27,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27 WrapperNode [2024-11-24 00:52:27,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:52:27,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:52:27,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:52:27,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:52:27,668 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,678 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,711 INFO L138 Inliner]: procedures = 27, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 211 [2024-11-24 00:52:27,711 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:52:27,712 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:52:27,712 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:52:27,712 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:52:27,723 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,726 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,741 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:52:27,741 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,742 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,749 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,750 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,756 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,758 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,759 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,763 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:52:27,764 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:52:27,764 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:52:27,764 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:52:27,766 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (1/1) ... [2024-11-24 00:52:27,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:27,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:52:27,807 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:52:27,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:52:27,851 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:52:27,855 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-24 00:52:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-24 00:52:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:52:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:52:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:52:27,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 00:52:27,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 00:52:27,971 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:52:27,973 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:52:28,586 INFO L? ?]: Removed 81 outVars from TransFormulas that were not future-live. [2024-11-24 00:52:28,586 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:52:28,600 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:52:28,601 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 00:52:28,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:52:28 BoogieIcfgContainer [2024-11-24 00:52:28,602 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:52:28,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:52:28,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:52:28,611 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:52:28,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:52:27" (1/3) ... [2024-11-24 00:52:28,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdd6683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:52:28, skipping insertion in model container [2024-11-24 00:52:28,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:27" (2/3) ... [2024-11-24 00:52:28,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bdd6683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:52:28, skipping insertion in model container [2024-11-24 00:52:28,613 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:52:28" (3/3) ... [2024-11-24 00:52:28,615 INFO L128 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_1-2a.c.cil.c [2024-11-24 00:52:28,634 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:52:28,636 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_1+soft_float_1-2a.c.cil.c that has 3 procedures, 103 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-24 00:52:28,707 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:52:28,721 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;@2bf5c1b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:52:28,721 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:52:28,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 90 states have (on average 1.5888888888888888) internal successors, (143), 94 states have internal predecessors, (143), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-24 00:52:28,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 00:52:28,732 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:28,733 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:52:28,734 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:28,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:28,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1530844763, now seen corresponding path program 1 times [2024-11-24 00:52:28,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:28,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953123853] [2024-11-24 00:52:28,752 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:28,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:28,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:28,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:52:28,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:52:28,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953123853] [2024-11-24 00:52:28,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953123853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:28,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:28,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:52:28,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363689981] [2024-11-24 00:52:28,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:28,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:52:28,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:52:28,975 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:52:28,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:52:28,980 INFO L87 Difference]: Start difference. First operand has 103 states, 90 states have (on average 1.5888888888888888) internal successors, (143), 94 states have internal predecessors, (143), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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) [2024-11-24 00:52:29,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:29,033 INFO L93 Difference]: Finished difference Result 201 states and 318 transitions. [2024-11-24 00:52:29,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:52:29,041 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 [2024-11-24 00:52:29,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:29,052 INFO L225 Difference]: With dead ends: 201 [2024-11-24 00:52:29,053 INFO L226 Difference]: Without dead ends: 96 [2024-11-24 00:52:29,058 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:52:29,064 INFO L435 NwaCegarLoop]: 149 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, 149 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:29,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:52:29,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-24 00:52:29,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-24 00:52:29,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 84 states have (on average 1.4880952380952381) internal successors, (125), 87 states have internal predecessors, (125), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:52:29,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 140 transitions. [2024-11-24 00:52:29,133 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 140 transitions. Word has length 7 [2024-11-24 00:52:29,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:29,134 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 140 transitions. [2024-11-24 00:52:29,134 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) [2024-11-24 00:52:29,134 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 140 transitions. [2024-11-24 00:52:29,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 00:52:29,134 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:29,135 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:52:29,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 00:52:29,135 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:29,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:29,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1530904345, now seen corresponding path program 1 times [2024-11-24 00:52:29,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:52:29,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471900832] [2024-11-24 00:52:29,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:29,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:52:29,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:52:29,170 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:52:29,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:52:29,214 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-24 00:52:29,214 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:52:29,216 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-24 00:52:29,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-24 00:52:29,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:52:29,224 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:52:29,240 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:52:29,245 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:52:29 BoogieIcfgContainer [2024-11-24 00:52:29,245 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:52:29,246 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:52:29,248 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:52:29,248 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:52:29,249 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:52:28" (3/4) ... [2024-11-24 00:52:29,252 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-24 00:52:29,253 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:52:29,256 INFO L158 Benchmark]: Toolchain (without parser) took 2025.10ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 79.5MB in the end (delta: 14.0MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-24 00:52:29,256 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:52:29,257 INFO L158 Benchmark]: CACSL2BoogieTranslator took 428.09ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 78.6MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:52:29,257 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.62ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:52:29,258 INFO L158 Benchmark]: Boogie Preprocessor took 50.90ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 74.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:52:29,258 INFO L158 Benchmark]: RCFGBuilder took 838.08ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 49.9MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-24 00:52:29,259 INFO L158 Benchmark]: TraceAbstraction took 640.77ms. Allocated memory is still 117.4MB. Free memory was 49.6MB in the beginning and 79.5MB in the end (delta: -29.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:52:29,260 INFO L158 Benchmark]: Witness Printer took 7.41ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 79.5MB in the end (delta: 21.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:52:29,263 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51ms. Allocated memory is still 167.8MB. Free memory is still 104.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 428.09ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 78.6MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.62ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.2MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.90ms. Allocated memory is still 117.4MB. Free memory was 76.2MB in the beginning and 74.0MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 838.08ms. Allocated memory is still 117.4MB. Free memory was 74.0MB in the beginning and 49.9MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 640.77ms. Allocated memory is still 117.4MB. Free memory was 49.6MB in the beginning and 79.5MB in the end (delta: -29.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.41ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 79.5MB in the end (delta: 21.0kB). 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 47, overapproximation of someBinaryFLOATComparisonOperation at line 40, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L403] COND TRUE __VERIFIER_nondet_int() [L404] 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 < 1.39f) [L48] reach_error() - UnprovableResult [Line: 61]: 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, 103 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 149 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, 149 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=103occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-24 00:52:29,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:52:32,484 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:52:32,601 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-24 00:52:32,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:52:32,608 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:52:32,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:52:32,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:52:32,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:52:32,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:52:32,652 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:52:32,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:52:32,652 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:52:32,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:52:32,653 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:52:32,653 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:52:32,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:52:32,653 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:52:32,653 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:52:32,653 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:52:32,653 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:52:32,654 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:52:32,654 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:52:32,654 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:52:32,654 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-24 00:52:32,654 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-24 00:52:32,654 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-24 00:52:32,656 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:52:32,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:52:32,656 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:52:32,656 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:52:32,656 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:52:32,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:52:32,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:52:32,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:52:32,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:32,657 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:52:32,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:52:32,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:52:32,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:52:32,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:32,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:52:32,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:52:32,658 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:52:32,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:52:32,658 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-24 00:52:32,659 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-24 00:52:32,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:52:32,659 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:52:32,659 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:52:32,659 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:52:32,659 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f3d0efaf33b93df425f185e68aa4bb5fd862b42784228ced2cb70c663695e18 [2024-11-24 00:52:33,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:52:33,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:52:33,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:52:33,108 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:52:33,108 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:52:33,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2024-11-24 00:52:36,524 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data/42add587a/ea930e11cbcb473d83e16695e541255d/FLAGcacf2918e [2024-11-24 00:52:36,939 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:52:36,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c [2024-11-24 00:52:36,960 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data/42add587a/ea930e11cbcb473d83e16695e541255d/FLAGcacf2918e [2024-11-24 00:52:37,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/data/42add587a/ea930e11cbcb473d83e16695e541255d [2024-11-24 00:52:37,129 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:52:37,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:52:37,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:52:37,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:52:37,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:52:37,142 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c6a7592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37, skipping insertion in model container [2024-11-24 00:52:37,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,181 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:52:37,410 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c[1996,2009] [2024-11-24 00:52:37,419 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c[2390,2403] [2024-11-24 00:52:37,518 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:52:37,533 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:52:37,556 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c[1996,2009] [2024-11-24 00:52:37,558 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_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/sv-benchmarks/c/combinations/square_1+soft_float_1-2a.c.cil.c[2390,2403] [2024-11-24 00:52:37,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:52:37,651 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:52:37,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37 WrapperNode [2024-11-24 00:52:37,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:52:37,656 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:52:37,656 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:52:37,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:52:37,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,727 INFO L138 Inliner]: procedures = 28, calls = 20, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-24 00:52:37,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:52:37,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:52:37,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:52:37,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:52:37,744 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,750 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,781 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-24 00:52:37,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,785 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,802 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,823 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:52:37,831 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:52:37,831 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:52:37,831 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:52:37,835 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (1/1) ... [2024-11-24 00:52:37,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:52:37,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:52:37,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:52:37,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:52:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:52:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-24 00:52:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-24 00:52:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-24 00:52:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:52:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:52:37,921 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-24 00:52:37,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-24 00:52:38,012 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:52:38,015 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:52:42,889 INFO L? ?]: Removed 65 outVars from TransFormulas that were not future-live. [2024-11-24 00:52:42,889 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:52:42,904 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:52:42,904 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-24 00:52:42,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:52:42 BoogieIcfgContainer [2024-11-24 00:52:42,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:52:42,907 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:52:42,908 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:52:42,914 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:52:42,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:52:37" (1/3) ... [2024-11-24 00:52:42,915 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad22e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:52:42, skipping insertion in model container [2024-11-24 00:52:42,915 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:52:37" (2/3) ... [2024-11-24 00:52:42,916 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad22e52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:52:42, skipping insertion in model container [2024-11-24 00:52:42,916 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:52:42" (3/3) ... [2024-11-24 00:52:42,917 INFO L128 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_1-2a.c.cil.c [2024-11-24 00:52:42,936 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:52:42,938 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_1+soft_float_1-2a.c.cil.c that has 3 procedures, 79 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-24 00:52:43,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:52:43,030 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;@3a86c64a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:52:43,030 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-24 00:52:43,035 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 66 states have (on average 1.606060606060606) internal successors, (106), 70 states have internal predecessors, (106), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-24 00:52:43,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 00:52:43,040 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:43,041 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:52:43,041 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:43,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:43,047 INFO L85 PathProgramCache]: Analyzing trace with hash 78502818, now seen corresponding path program 1 times [2024-11-24 00:52:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:52:43,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [348636442] [2024-11-24 00:52:43,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:43,056 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:52:43,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:52:43,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:52:43,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-24 00:52:43,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:52:43,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 00:52:43,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:52:43,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:52:43,685 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:52:43,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-24 00:52:43,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [348636442] [2024-11-24 00:52:43,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [348636442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:52:43,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:52:43,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:52:43,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479830968] [2024-11-24 00:52:43,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:52:43,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 00:52:43,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-24 00:52:43,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 00:52:43,722 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 00:52:43,725 INFO L87 Difference]: Start difference. First operand has 79 states, 66 states have (on average 1.606060606060606) internal successors, (106), 70 states have internal predecessors, (106), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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) [2024-11-24 00:52:43,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 00:52:43,773 INFO L93 Difference]: Finished difference Result 153 states and 244 transitions. [2024-11-24 00:52:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 00:52:43,775 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 [2024-11-24 00:52:43,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 00:52:43,787 INFO L225 Difference]: With dead ends: 153 [2024-11-24 00:52:43,787 INFO L226 Difference]: Without dead ends: 72 [2024-11-24 00:52:43,792 INFO L434 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 [2024-11-24 00:52:43,798 INFO L435 NwaCegarLoop]: 114 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, 114 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 00:52:43,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 00:52:43,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-11-24 00:52:43,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-11-24 00:52:43,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 60 states have (on average 1.5) internal successors, (90), 63 states have internal predecessors, (90), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-24 00:52:43,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 105 transitions. [2024-11-24 00:52:43,859 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 105 transitions. Word has length 7 [2024-11-24 00:52:43,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 00:52:43,860 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 105 transitions. [2024-11-24 00:52:43,860 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) [2024-11-24 00:52:43,860 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 105 transitions. [2024-11-24 00:52:43,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 00:52:43,861 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 00:52:43,861 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:52:43,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:52:44,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:52:44,062 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 00:52:44,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:52:44,063 INFO L85 PathProgramCache]: Analyzing trace with hash 78562400, now seen corresponding path program 1 times [2024-11-24 00:52:44,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-24 00:52:44,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827111632] [2024-11-24 00:52:44,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:52:44,064 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:52:44,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-24 00:52:44,066 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-24 00:52:44,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-24 00:52:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:52:55,186 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-24 00:54:15,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-24 00:54:15,149 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-24 00:54:15,149 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-24 00:54:15,151 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-24 00:54:15,152 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-24 00:54:15,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-24 00:54:15,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-24 00:54:15,359 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-24 00:54:15,409 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 00:54:15,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 12:54:15 BoogieIcfgContainer [2024-11-24 00:54:15,417 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 00:54:15,422 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 00:54:15,422 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 00:54:15,422 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 00:54:15,427 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:52:42" (3/4) ... [2024-11-24 00:54:15,428 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-24 00:54:15,483 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-11-24 00:54:15,559 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 00:54:15,559 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 00:54:15,559 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 00:54:15,560 INFO L158 Benchmark]: Toolchain (without parser) took 98428.97ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 71.4MB in the end (delta: 21.5MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-11-24 00:54:15,561 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:54:15,561 INFO L158 Benchmark]: CACSL2BoogieTranslator took 521.74ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 77.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:54:15,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.53ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:54:15,564 INFO L158 Benchmark]: Boogie Preprocessor took 101.83ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:54:15,565 INFO L158 Benchmark]: RCFGBuilder took 5073.91ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 53.4MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 00:54:15,565 INFO L158 Benchmark]: TraceAbstraction took 92510.22ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 76.0MB in the end (delta: -23.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 00:54:15,565 INFO L158 Benchmark]: Witness Printer took 137.82ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 71.4MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 00:54:15,569 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 117.4MB. Free memory is still 84.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 521.74ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 77.0MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.53ms. Allocated memory is still 117.4MB. Free memory was 77.0MB in the beginning and 75.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 101.83ms. Allocated memory is still 117.4MB. Free memory was 75.3MB in the beginning and 72.9MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 5073.91ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 53.4MB in the end (delta: 19.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 92510.22ms. Allocated memory is still 117.4MB. Free memory was 52.7MB in the beginning and 76.0MB in the end (delta: -23.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 137.82ms. Allocated memory is still 117.4MB. Free memory was 75.5MB in the beginning and 71.4MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L403] COND TRUE __VERIFIER_nondet_int() [L404] 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=1.3984375] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) [L48] reach_error() - UnprovableResult [Line: 61]: 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, 79 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 92.4s, 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, 114 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, 114 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=79occurred 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, 11.6s 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-24 00:54:15,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce670d87-e09b-4bc5-b421-0d1ed5e3a900/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE