./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:14:07,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:14:07,725 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:14:07,731 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:14:07,732 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:14:07,760 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:14:07,761 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:14:07,761 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:14:07,761 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:14:07,762 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:14:07,762 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:14:07,762 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:14:07,762 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:14:07,762 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:14:07,763 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:14:07,763 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:14:07,763 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:14:07,763 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:14:07,763 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:14:07,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:14:07,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:14:07,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:14:07,766 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:14:07,766 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:14:07,766 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:14:07,766 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:14:07,767 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:14:07,767 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:14:07,767 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:14:07,767 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:14:07,767 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:14:07,767 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:14:07,767 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:07,768 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:14:07,768 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:14:07,768 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:14:07,768 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:14:07,768 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:14:07,768 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:14:07,768 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:14:07,768 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:14:07,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:14:07,769 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_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366 [2024-11-13 15:14:08,151 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:14:08,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:14:08,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:14:08,171 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:14:08,171 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:14:08,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c Unable to find full path for "g++" [2024-11-13 15:14:10,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:14:10,641 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:14:10,642 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c [2024-11-13 15:14:10,653 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/data/edf6ec441/8685e64f7f644807bf99108cdec97444/FLAG716b641a9 [2024-11-13 15:14:10,671 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/data/edf6ec441/8685e64f7f644807bf99108cdec97444 [2024-11-13 15:14:10,674 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:14:10,676 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:14:10,677 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:10,677 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:14:10,683 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:14:10,684 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:10" (1/1) ... [2024-11-13 15:14:10,685 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71187ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:10, skipping insertion in model container [2024-11-13 15:14:10,685 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:10" (1/1) ... [2024-11-13 15:14:10,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:14:10,940 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_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009] [2024-11-13 15:14:10,945 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_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378] [2024-11-13 15:14:11,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:11,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:14:11,070 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009] [2024-11-13 15:14:11,076 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_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378] [2024-11-13 15:14:11,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:11,162 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:14:11,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11 WrapperNode [2024-11-13 15:14:11,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:11,165 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:11,165 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:14:11,165 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:14:11,177 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,189 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,234 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 168 [2024-11-13 15:14:11,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:11,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:14:11,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:14:11,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:14:11,252 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,254 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,285 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:14:11,290 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,290 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,301 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,302 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,303 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,306 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:14:11,307 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:14:11,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:14:11,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:14:11,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (1/1) ... [2024-11-13 15:14:11,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:11,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:11,340 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:14:11,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:14:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:14:11,376 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-13 15:14:11,376 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-13 15:14:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:14:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:14:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:14:11,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:14:11,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:14:11,497 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:14:11,500 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:14:12,084 INFO L? ?]: Removed 70 outVars from TransFormulas that were not future-live. [2024-11-13 15:14:12,084 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:14:12,096 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:14:12,096 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:14:12,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:12 BoogieIcfgContainer [2024-11-13 15:14:12,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:14:12,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:14:12,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:14:12,106 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:14:12,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:14:10" (1/3) ... [2024-11-13 15:14:12,107 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c28f611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:12, skipping insertion in model container [2024-11-13 15:14:12,107 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:11" (2/3) ... [2024-11-13 15:14:12,108 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c28f611 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:12, skipping insertion in model container [2024-11-13 15:14:12,108 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:12" (3/3) ... [2024-11-13 15:14:12,109 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_2a.c.cil.c [2024-11-13 15:14:12,123 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:14:12,125 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG square_1+soft_float_2a.c.cil.c that has 3 procedures, 84 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 15:14:12,187 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:14:12,200 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;@5b7e8e01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:14:12,201 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:14:12,206 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 74 states have (on average 1.5405405405405406) internal successors, (114), 77 states have internal predecessors, (114), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:14:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:14:12,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:12,213 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:12,214 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:12,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:12,219 INFO L85 PathProgramCache]: Analyzing trace with hash -929888677, now seen corresponding path program 1 times [2024-11-13 15:14:12,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:14:12,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484824360] [2024-11-13 15:14:12,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:12,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:14:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:12,337 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:14:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:12,364 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:14:12,366 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:14:12,367 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 15:14:12,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 15:14:12,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:14:12,375 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-13 15:14:12,388 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:14:12,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:14:12 BoogieIcfgContainer [2024-11-13 15:14:12,393 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:14:12,395 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:14:12,395 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:14:12,395 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:14:12,396 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:12" (3/4) ... [2024-11-13 15:14:12,399 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:14:12,400 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:14:12,401 INFO L158 Benchmark]: Toolchain (without parser) took 1725.47ms. Allocated memory is still 109.1MB. Free memory was 83.9MB in the beginning and 76.9MB in the end (delta: 7.0MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2024-11-13 15:14:12,402 INFO L158 Benchmark]: CDTParser took 1.64ms. Allocated memory is still 83.9MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:12,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 486.32ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 69.4MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:14:12,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.90ms. Allocated memory is still 109.1MB. Free memory was 69.4MB in the beginning and 67.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:12,405 INFO L158 Benchmark]: Boogie Preprocessor took 70.39ms. Allocated memory is still 109.1MB. Free memory was 67.8MB in the beginning and 65.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:12,405 INFO L158 Benchmark]: RCFGBuilder took 790.40ms. Allocated memory is still 109.1MB. Free memory was 65.7MB in the beginning and 45.5MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:14:12,406 INFO L158 Benchmark]: TraceAbstraction took 293.16ms. Allocated memory is still 109.1MB. Free memory was 44.7MB in the beginning and 77.5MB in the end (delta: -32.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:12,406 INFO L158 Benchmark]: Witness Printer took 4.74ms. Allocated memory is still 109.1MB. Free memory was 76.9MB in the beginning and 76.9MB in the end (delta: 12.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:14:12,412 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.64ms. Allocated memory is still 83.9MB. Free memory is still 42.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 486.32ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 69.4MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.90ms. Allocated memory is still 109.1MB. Free memory was 69.4MB in the beginning and 67.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.39ms. Allocated memory is still 109.1MB. Free memory was 67.8MB in the beginning and 65.7MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 790.40ms. Allocated memory is still 109.1MB. Free memory was 65.7MB in the beginning and 45.5MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 293.16ms. Allocated memory is still 109.1MB. Free memory was 44.7MB in the beginning and 77.5MB in the end (delta: -32.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.74ms. Allocated memory is still 109.1MB. Free memory was 76.9MB in the beginning and 76.9MB in the end (delta: 12.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 < 1.39f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 84 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 15:14:12,442 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:14:15,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:14:15,762 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:14:15,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:14:15,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:14:15,819 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:14:15,820 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:14:15,822 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:14:15,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:14:15,823 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:14:15,824 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:14:15,824 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:14:15,825 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:14:15,825 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:14:15,825 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:14:15,825 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:14:15,825 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:14:15,826 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:14:15,826 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:14:15,826 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:14:15,826 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:14:15,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:14:15,827 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:14:15,827 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:14:15,827 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:14:15,828 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:14:15,828 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:14:15,828 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:14:15,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:14:15,828 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:14:15,828 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:14:15,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:14:15,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:14:15,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:14:15,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:15,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:14:15,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:14:15,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:14:15,829 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:14:15,829 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:14:15,829 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:14:15,830 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:14:15,830 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:14:15,830 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:14:15,830 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_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 59c8d963265d6c742e08e9840805bbe9b84f06daace9b9a62f5aab6f4fda5366 [2024-11-13 15:14:16,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:14:16,281 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:14:16,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:14:16,286 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:14:16,286 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:14:16,288 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c Unable to find full path for "g++" [2024-11-13 15:14:18,251 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:14:18,507 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:14:18,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c [2024-11-13 15:14:18,520 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/data/9f1440f86/8b08175e3c58433ca409f2b12365d8ee/FLAGecbe100ac [2024-11-13 15:14:18,828 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/data/9f1440f86/8b08175e3c58433ca409f2b12365d8ee [2024-11-13 15:14:18,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:14:18,832 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:14:18,834 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:18,834 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:14:18,838 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:14:18,839 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:18" (1/1) ... [2024-11-13 15:14:18,840 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d96baf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:18, skipping insertion in model container [2024-11-13 15:14:18,840 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:14:18" (1/1) ... [2024-11-13 15:14:18,871 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:14:19,063 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_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009] [2024-11-13 15:14:19,068 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378] [2024-11-13 15:14:19,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:19,164 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:14:19,178 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_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[1996,2009] [2024-11-13 15:14:19,180 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_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/sv-benchmarks/c/combinations/square_1+soft_float_2a.c.cil.c[2365,2378] [2024-11-13 15:14:19,207 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:14:19,224 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:14:19,224 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19 WrapperNode [2024-11-13 15:14:19,225 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:14:19,226 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:19,226 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:14:19,226 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:14:19,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,264 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 132 [2024-11-13 15:14:19,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:14:19,265 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:14:19,265 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:14:19,265 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:14:19,274 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,294 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 15:14:19,294 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,294 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,302 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,306 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,308 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,309 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:14:19,314 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:14:19,314 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:14:19,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:14:19,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (1/1) ... [2024-11-13 15:14:19,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:14:19,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:14:19,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:14:19,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:14:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:14:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:14:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2024-11-13 15:14:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2024-11-13 15:14:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:14:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:14:19,377 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 15:14:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 15:14:19,497 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:14:19,503 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:14:24,290 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-13 15:14:24,290 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:14:24,304 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:14:24,304 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:14:24,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:24 BoogieIcfgContainer [2024-11-13 15:14:24,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:14:24,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:14:24,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:14:24,315 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:14:24,315 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:14:18" (1/3) ... [2024-11-13 15:14:24,316 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bdad06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:24, skipping insertion in model container [2024-11-13 15:14:24,316 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:14:19" (2/3) ... [2024-11-13 15:14:24,317 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27bdad06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:14:24, skipping insertion in model container [2024-11-13 15:14:24,317 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:24" (3/3) ... [2024-11-13 15:14:24,318 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_2a.c.cil.c [2024-11-13 15:14:24,338 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:14:24,340 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG square_1+soft_float_2a.c.cil.c that has 3 procedures, 61 locations, 1 initial locations, 2 loop locations, and 2 error locations. [2024-11-13 15:14:24,420 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:14:24,434 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;@59ab4dfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:14:24,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:14:24,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-13 15:14:24,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:14:24,447 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:24,448 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:24,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:24,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:24,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1912677092, now seen corresponding path program 1 times [2024-11-13 15:14:24,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:14:24,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1351165047] [2024-11-13 15:14:24,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:24,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:14:24,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:14:24,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:14:24,471 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-13 15:14:25,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:14:25,046 INFO L255 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:14:25,048 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:14:25,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:14:25,063 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:14:25,063 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:14:25,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1351165047] [2024-11-13 15:14:25,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1351165047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:14:25,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:14:25,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:14:25,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366843005] [2024-11-13 15:14:25,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:14:25,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:14:25,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:14:25,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:14:25,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:14:25,092 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:25,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:14:25,129 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2024-11-13 15:14:25,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:14:25,132 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-13 15:14:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:14:25,141 INFO L225 Difference]: With dead ends: 117 [2024-11-13 15:14:25,141 INFO L226 Difference]: Without dead ends: 52 [2024-11-13 15:14:25,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:14:25,152 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:14:25,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:14:25,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-11-13 15:14:25,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-11-13 15:14:25,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-13 15:14:25,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2024-11-13 15:14:25,194 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2024-11-13 15:14:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:14:25,194 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2024-11-13 15:14:25,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:14:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2024-11-13 15:14:25,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 15:14:25,195 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:14:25,195 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:14:25,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-13 15:14:25,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:14:25,396 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:14:25,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:14:25,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1912736674, now seen corresponding path program 1 times [2024-11-13 15:14:25,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:14:25,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1220261179] [2024-11-13 15:14:25,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:14:25,397 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:14:25,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:14:25,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-13 15:14:25,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-13 15:14:35,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:14:35,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:15:54,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:15:54,356 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 15:15:54,356 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:15:54,358 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 15:15:54,361 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 15:15:54,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-13 15:15:54,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-13 15:15:54,571 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 15:15:54,593 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:15:54,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:15:54 BoogieIcfgContainer [2024-11-13 15:15:54,597 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:15:54,598 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:15:54,598 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:15:54,598 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:15:54,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:14:24" (3/4) ... [2024-11-13 15:15:54,600 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 15:15:54,636 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:15:54,636 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:15:54,637 INFO L158 Benchmark]: Toolchain (without parser) took 95805.73ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 39.4MB in the end (delta: 20.7MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-11-13 15:15:54,638 INFO L158 Benchmark]: CDTParser took 0.51ms. Allocated memory is still 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:15:54,638 INFO L158 Benchmark]: CACSL2BoogieTranslator took 391.04ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 45.5MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:15:54,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.71ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 43.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:15:54,639 INFO L158 Benchmark]: Boogie Preprocessor took 48.13ms. Allocated memory is still 83.9MB. Free memory was 43.7MB in the beginning and 41.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:15:54,639 INFO L158 Benchmark]: RCFGBuilder took 4991.15ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 24.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:15:54,640 INFO L158 Benchmark]: TraceAbstraction took 90288.30ms. Allocated memory is still 83.9MB. Free memory was 23.8MB in the beginning and 41.3MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:15:54,640 INFO L158 Benchmark]: Witness Printer took 38.85ms. Allocated memory is still 83.9MB. Free memory was 41.3MB in the beginning and 39.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:15:54,642 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 83.9MB. Free memory is still 64.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 391.04ms. Allocated memory is still 83.9MB. Free memory was 60.1MB in the beginning and 45.5MB in the end (delta: 14.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.71ms. Allocated memory is still 83.9MB. Free memory was 45.5MB in the beginning and 43.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.13ms. Allocated memory is still 83.9MB. Free memory was 43.7MB in the beginning and 41.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 4991.15ms. Allocated memory is still 83.9MB. Free memory was 41.6MB in the beginning and 24.4MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 90288.30ms. Allocated memory is still 83.9MB. Free memory was 23.8MB in the beginning and 41.3MB in the end (delta: -17.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 38.85ms. Allocated memory is still 83.9MB. Free memory was 41.3MB in the beginning and 39.4MB in the end (delta: 1.8MB). 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=1.3984375] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) [L48] reach_error() - UnprovableResult [Line: 60]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 90.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 10.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-13 15:15:54,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9199a5d2-6fa6-49c3-a302-b9d742e8edf7/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE