./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_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_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/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_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/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_a99ed623-1da8-4152-9fa1-f53c26047a62/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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:40:43,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:40:43,966 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 18:40:43,971 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:40:43,972 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:40:43,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:40:43,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:40:43,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:40:44,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:40:44,000 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:40:44,000 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:40:44,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:40:44,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:40:44,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:40:44,002 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:40:44,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:40:44,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:40:44,003 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:40:44,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:40:44,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:40:44,004 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:40:44,004 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:40:44,004 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:40:44,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:40:44,004 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:40:44,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:40:44,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:40:44,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:40:44,005 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:40:44,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:40:44,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:40:44,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:40:44,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:44,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:40:44,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:40:44,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:40:44,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:40:44,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:44,007 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:40:44,007 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:40:44,007 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:40:44,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:40:44,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:40:44,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:40:44,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:40:44,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:40:44,008 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:40:44,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:40:44,008 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_a99ed623-1da8-4152-9fa1-f53c26047a62/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 -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2024-11-23 18:40:44,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:40:44,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:40:44,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:40:44,394 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:40:44,395 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:40:44,396 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2024-11-23 18:40:47,346 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data/b1f777209/62368ecea33e4395ab92ea12b47b4d7b/FLAGbbf76aeb5 [2024-11-23 18:40:47,660 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:40:47,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2024-11-23 18:40:47,675 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data/b1f777209/62368ecea33e4395ab92ea12b47b4d7b/FLAGbbf76aeb5 [2024-11-23 18:40:47,697 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data/b1f777209/62368ecea33e4395ab92ea12b47b4d7b [2024-11-23 18:40:47,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:40:47,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:40:47,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:40:47,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:40:47,715 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:40:47,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:40:47" (1/1) ... [2024-11-23 18:40:47,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72bf707b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:47, skipping insertion in model container [2024-11-23 18:40:47,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:40:47" (1/1) ... [2024-11-23 18:40:47,756 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:40:47,971 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_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2024-11-23 18:40:47,979 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_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2024-11-23 18:40:48,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:40:48,055 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:40:48,073 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_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2024-11-23 18:40:48,074 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_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2024-11-23 18:40:48,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:40:48,145 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:40:48,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48 WrapperNode [2024-11-23 18:40:48,146 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:40:48,147 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:40:48,147 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:40:48,147 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:40:48,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,189 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-23 18:40:48,189 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:40:48,190 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:40:48,190 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:40:48,190 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:40:48,199 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,199 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,202 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,228 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:40:48,228 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,228 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,239 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,240 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,246 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:40:48,254 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:40:48,254 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:40:48,254 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:40:48,255 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (1/1) ... [2024-11-23 18:40:48,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:48,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:48,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:40:48,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:40:48,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:40:48,324 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-23 18:40:48,324 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-23 18:40:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 18:40:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:40:48,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:40:48,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 18:40:48,325 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 18:40:48,412 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:40:48,414 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:40:48,926 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-23 18:40:48,928 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:40:48,948 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:40:48,948 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 18:40:48,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:48 BoogieIcfgContainer [2024-11-23 18:40:48,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:40:48,954 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:40:48,954 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:40:48,958 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:40:48,959 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:40:47" (1/3) ... [2024-11-23 18:40:48,959 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e15c8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:40:48, skipping insertion in model container [2024-11-23 18:40:48,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:48" (2/3) ... [2024-11-23 18:40:48,960 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e15c8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:40:48, skipping insertion in model container [2024-11-23 18:40:48,960 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:48" (3/3) ... [2024-11-23 18:40:48,961 INFO L128 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2024-11-23 18:40:48,979 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:40:48,982 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_3+soft_float_2a.c.cil.c that has 3 procedures, 82 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-23 18:40:49,052 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:40:49,068 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;@64de2587, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:40:49,068 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 18:40:49,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 75 states have internal predecessors, (112), 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) [2024-11-23 18:40:49,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-23 18:40:49,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:49,077 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:49,077 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:49,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:49,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1530844763, now seen corresponding path program 1 times [2024-11-23 18:40:49,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:49,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073160862] [2024-11-23 18:40:49,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:49,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:40:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:40:49,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:40:49,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073160862] [2024-11-23 18:40:49,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073160862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:40:49,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:40:49,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:40:49,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946495152] [2024-11-23 18:40:49,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:40:49,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:40:49,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:40:49,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:40:49,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:40:49,246 INFO L87 Difference]: Start difference. First operand has 82 states, 72 states have (on average 1.5555555555555556) internal successors, (112), 75 states have internal predecessors, (112), 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) [2024-11-23 18:40:49,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:40:49,286 INFO L93 Difference]: Finished difference Result 159 states and 241 transitions. [2024-11-23 18:40:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:40:49,291 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 [2024-11-23 18:40:49,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:40:49,299 INFO L225 Difference]: With dead ends: 159 [2024-11-23 18:40:49,300 INFO L226 Difference]: Without dead ends: 73 [2024-11-23 18:40:49,329 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 [2024-11-23 18:40:49,336 INFO L435 NwaCegarLoop]: 113 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, 113 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:40:49,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:40:49,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-23 18:40:49,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-23 18:40:49,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 65 states have (on average 1.4307692307692308) internal successors, (93), 66 states have internal predecessors, (93), 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) [2024-11-23 18:40:49,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 102 transitions. [2024-11-23 18:40:49,389 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 102 transitions. Word has length 7 [2024-11-23 18:40:49,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:40:49,389 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 102 transitions. [2024-11-23 18:40:49,390 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) [2024-11-23 18:40:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2024-11-23 18:40:49,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-23 18:40:49,390 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:40:49,390 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:40:49,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:40:49,391 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:40:49,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:40:49,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1530904345, now seen corresponding path program 1 times [2024-11-23 18:40:49,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:40:49,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903823677] [2024-11-23 18:40:49,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:40:49,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:40:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:40:49,420 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:40:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:40:49,452 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 18:40:49,453 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:40:49,454 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-23 18:40:49,457 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-23 18:40:49,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 18:40:49,461 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 18:40:49,474 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:40:49,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:40:49 BoogieIcfgContainer [2024-11-23 18:40:49,481 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:40:49,481 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:40:49,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:40:49,482 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:40:49,482 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:40:48" (3/4) ... [2024-11-23 18:40:49,486 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 18:40:49,486 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:40:49,488 INFO L158 Benchmark]: Toolchain (without parser) took 1783.74ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 85.3MB in the end (delta: 7.4MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2024-11-23 18:40:49,488 INFO L158 Benchmark]: CDTParser took 0.68ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:40:49,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.22ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 78.3MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:40:49,490 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.45ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:40:49,490 INFO L158 Benchmark]: Boogie Preprocessor took 59.18ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:40:49,491 INFO L158 Benchmark]: RCFGBuilder took 695.78ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 53.9MB in the end (delta: 20.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 18:40:49,491 INFO L158 Benchmark]: TraceAbstraction took 527.30ms. Allocated memory is still 117.4MB. Free memory was 53.3MB in the beginning and 85.9MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:40:49,491 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 117.4MB. Free memory was 85.9MB in the beginning and 85.3MB in the end (delta: 545.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:40:49,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.22ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 78.3MB in the end (delta: 14.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.45ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.18ms. Allocated memory is still 117.4MB. Free memory was 76.5MB in the beginning and 74.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 695.78ms. Allocated memory is still 117.4MB. Free memory was 74.4MB in the beginning and 53.9MB in the end (delta: 20.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 527.30ms. Allocated memory is still 117.4MB. Free memory was 53.3MB in the beginning and 85.9MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 117.4MB. Free memory was 85.9MB in the beginning and 85.3MB in the end (delta: 545.5kB). 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: [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, 82 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 113 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, 113 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=82occurred 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, 0.0s 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 [2024-11-23 18:40:49,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/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_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/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_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/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_a99ed623-1da8-4152-9fa1-f53c26047a62/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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:40:52,280 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:40:52,419 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 18:40:52,429 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:40:52,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:40:52,467 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:40:52,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:40:52,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:40:52,470 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:40:52,470 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:40:52,471 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:40:52,472 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:40:52,472 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:40:52,473 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:40:52,473 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:40:52,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:40:52,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:40:52,474 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 18:40:52,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 18:40:52,474 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:40:52,474 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:40:52,474 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:40:52,474 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:40:52,475 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 18:40:52,475 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 18:40:52,475 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 18:40:52,475 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 18:40:52,475 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:40:52,475 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:40:52,475 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:40:52,475 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:40:52,476 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:40:52,476 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:40:52,476 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:40:52,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:52,477 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:40:52,477 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:40:52,477 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:40:52,477 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:40:52,477 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:52,477 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:40:52,478 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:40:52,478 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_a99ed623-1da8-4152-9fa1-f53c26047a62/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 -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2024-11-23 18:40:52,835 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:40:52,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:40:52,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:40:52,852 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:40:52,852 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:40:52,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2024-11-23 18:40:56,005 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data/192f41439/321fb4c87c984bc4aab9c10cb7cfd05c/FLAGd0604976d [2024-11-23 18:40:56,309 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:40:56,310 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2024-11-23 18:40:56,327 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data/192f41439/321fb4c87c984bc4aab9c10cb7cfd05c/FLAGd0604976d [2024-11-23 18:40:56,583 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/data/192f41439/321fb4c87c984bc4aab9c10cb7cfd05c [2024-11-23 18:40:56,588 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:40:56,591 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:40:56,593 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:40:56,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:40:56,599 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:40:56,600 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:56,601 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a01f95a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56, skipping insertion in model container [2024-11-23 18:40:56,601 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:56,628 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:40:56,813 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_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2024-11-23 18:40:56,823 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_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2024-11-23 18:40:56,886 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:40:56,900 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:40:56,913 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_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2024-11-23 18:40:56,914 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_a99ed623-1da8-4152-9fa1-f53c26047a62/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2024-11-23 18:40:56,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:40:56,985 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:40:56,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56 WrapperNode [2024-11-23 18:40:56,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:40:56,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:40:56,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:40:56,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:40:56,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,015 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,045 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-11-23 18:40:57,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:40:57,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:40:57,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:40:57,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:40:57,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,066 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,086 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 18:40:57,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,086 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,096 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,100 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,108 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,116 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:40:57,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:40:57,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:40:57,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:40:57,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (1/1) ... [2024-11-23 18:40:57,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:40:57,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:40:57,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:40:57,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:40:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:40:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 18:40:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-23 18:40:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-23 18:40:57,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:40:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:40:57,198 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-23 18:40:57,198 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-23 18:40:57,293 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:40:57,296 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:41:02,012 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-23 18:41:02,013 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:41:02,023 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:41:02,023 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 18:41:02,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:41:02 BoogieIcfgContainer [2024-11-23 18:41:02,024 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:41:02,026 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:41:02,027 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:41:02,031 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:41:02,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:40:56" (1/3) ... [2024-11-23 18:41:02,032 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456619c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:41:02, skipping insertion in model container [2024-11-23 18:41:02,032 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:40:56" (2/3) ... [2024-11-23 18:41:02,033 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@456619c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:41:02, skipping insertion in model container [2024-11-23 18:41:02,033 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:41:02" (3/3) ... [2024-11-23 18:41:02,034 INFO L128 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2024-11-23 18:41:02,049 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:41:02,052 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG square_3+soft_float_2a.c.cil.c that has 3 procedures, 59 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-23 18:41:02,098 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:41:02,113 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;@1751aa2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:41:02,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-23 18:41:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 52 states have internal predecessors, (77), 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) [2024-11-23 18:41:02,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-23 18:41:02,122 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:02,123 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:02,123 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:02,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:02,127 INFO L85 PathProgramCache]: Analyzing trace with hash 78502818, now seen corresponding path program 1 times [2024-11-23 18:41:02,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:41:02,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [653205698] [2024-11-23 18:41:02,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:02,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:41:02,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:41:02,137 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:41:02,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 18:41:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:02,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 18:41:02,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:41:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:41:02,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:41:02,619 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 18:41:02,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [653205698] [2024-11-23 18:41:02,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [653205698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:02,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:02,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:41:02,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698545676] [2024-11-23 18:41:02,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:02,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 18:41:02,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 18:41:02,642 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 18:41:02,642 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 18:41:02,644 INFO L87 Difference]: Start difference. First operand has 59 states, 49 states have (on average 1.5714285714285714) internal successors, (77), 52 states have internal predecessors, (77), 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) [2024-11-23 18:41:02,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:02,676 INFO L93 Difference]: Finished difference Result 113 states and 171 transitions. [2024-11-23 18:41:02,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 18:41:02,679 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 [2024-11-23 18:41:02,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:02,687 INFO L225 Difference]: With dead ends: 113 [2024-11-23 18:41:02,687 INFO L226 Difference]: Without dead ends: 50 [2024-11-23 18:41:02,692 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 [2024-11-23 18:41:02,696 INFO L435 NwaCegarLoop]: 80 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, 80 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:02,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:02,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-23 18:41:02,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-23 18:41:02,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 43 states have internal predecessors, (60), 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) [2024-11-23 18:41:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 69 transitions. [2024-11-23 18:41:02,741 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 69 transitions. Word has length 7 [2024-11-23 18:41:02,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:02,742 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 69 transitions. [2024-11-23 18:41:02,742 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) [2024-11-23 18:41:02,742 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 69 transitions. [2024-11-23 18:41:02,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-23 18:41:02,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:02,742 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:02,750 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-23 18:41:02,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:41:02,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 18:41:02,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash 78562400, now seen corresponding path program 1 times [2024-11-23 18:41:02,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 18:41:02,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1841554602] [2024-11-23 18:41:02,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:02,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:41:02,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 18:41:02,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 18:41:02,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 18:41:14,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:41:14,706 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 18:41:16,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 18:41:16,619 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-23 18:41:16,619 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 18:41:16,621 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-23 18:41:16,622 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-23 18:41:16,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/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 [2024-11-23 18:41:16,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 18:41:16,828 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 18:41:16,846 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:41:16,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:41:16 BoogieIcfgContainer [2024-11-23 18:41:16,850 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:41:16,851 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:41:16,851 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:41:16,851 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:41:16,852 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:41:02" (3/4) ... [2024-11-23 18:41:16,853 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-23 18:41:16,888 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-11-23 18:41:16,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 18:41:16,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 18:41:16,936 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:41:16,937 INFO L158 Benchmark]: Toolchain (without parser) took 20346.78ms. Allocated memory is still 83.9MB. Free memory was 61.2MB in the beginning and 29.9MB in the end (delta: 31.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2024-11-23 18:41:16,938 INFO L158 Benchmark]: CDTParser took 4.01ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:16,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 393.30ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 46.0MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 18:41:16,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.00ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:16,939 INFO L158 Benchmark]: Boogie Preprocessor took 70.14ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 41.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:16,939 INFO L158 Benchmark]: RCFGBuilder took 4903.48ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 54.6MB in the end (delta: -12.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-23 18:41:16,939 INFO L158 Benchmark]: TraceAbstraction took 14823.60ms. Allocated memory is still 83.9MB. Free memory was 53.9MB in the beginning and 34.1MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 18:41:16,940 INFO L158 Benchmark]: Witness Printer took 85.87ms. Allocated memory is still 83.9MB. Free memory was 34.1MB in the beginning and 29.9MB in the end (delta: 4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:16,941 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.01ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 393.30ms. Allocated memory is still 83.9MB. Free memory was 60.9MB in the beginning and 46.0MB in the end (delta: 14.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.00ms. Allocated memory is still 83.9MB. Free memory was 45.8MB in the beginning and 44.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.14ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 41.9MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 4903.48ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 54.6MB in the end (delta: -12.7MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 14823.60ms. Allocated memory is still 83.9MB. Free memory was 53.9MB in the beginning and 34.1MB in the end (delta: 19.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 85.87ms. Allocated memory is still 83.9MB. Free memory was 34.1MB in the beginning and 29.9MB in the end (delta: 4.2MB). 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, 59 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 14.7s, 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, 80 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, 80 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=59occurred 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, 12.1s 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! [2024-11-23 18:41:16,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a99ed623-1da8-4152-9fa1-f53c26047a62/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