./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i --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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:28:01,372 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:28:01,473 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:28:01,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:28:01,480 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:28:01,510 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:28:01,511 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:28:01,512 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:28:01,512 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:28:01,512 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:28:01,512 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:28:01,513 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:28:01,513 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:28:01,513 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:28:01,513 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:28:01,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:28:01,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:28:01,514 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:28:01,514 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:28:01,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:28:01,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:28:01,514 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:28:01,514 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:28:01,515 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:28:01,515 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:28:01,515 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:28:01,515 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:28:01,515 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:28:01,515 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:28:01,515 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:28:01,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:28:01,516 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:28:01,516 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:28:01,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:28:01,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:28:01,517 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:28:01,517 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:28:01,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:28:01,518 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:28:01,518 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:28:01,518 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:28:01,518 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:28:01,518 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 -> c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 [2024-11-13 15:28:01,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:28:01,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:28:01,928 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:28:01,929 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:28:01,930 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:28:01,931 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i Unable to find full path for "g++" [2024-11-13 15:28:04,208 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:28:04,580 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:28:04,581 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2024-11-13 15:28:04,622 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/data/013f8f7cb/116ffa0ff0ac471abfccba3892921406/FLAGe0acefd6f [2024-11-13 15:28:04,649 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/data/013f8f7cb/116ffa0ff0ac471abfccba3892921406 [2024-11-13 15:28:04,653 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:28:04,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:28:04,657 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:28:04,658 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:28:04,664 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:28:04,665 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:28:04" (1/1) ... [2024-11-13 15:28:04,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed96b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:04, skipping insertion in model container [2024-11-13 15:28:04,670 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:28:04" (1/1) ... [2024-11-13 15:28:04,695 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:28:04,918 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2024-11-13 15:28:04,966 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2024-11-13 15:28:04,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:28:04,990 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:28:05,008 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2024-11-13 15:28:05,040 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2024-11-13 15:28:05,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:28:05,068 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:28:05,069 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05 WrapperNode [2024-11-13 15:28:05,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:28:05,074 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:28:05,074 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:28:05,075 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:28:05,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,093 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,128 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 86 [2024-11-13 15:28:05,132 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:28:05,133 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:28:05,135 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:28:05,135 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:28:05,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,152 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,174 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:28:05,175 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,175 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,180 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,191 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,192 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,196 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,199 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:28:05,203 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:28:05,204 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:28:05,204 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:28:05,205 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (1/1) ... [2024-11-13 15:28:05,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:28:05,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:28:05,252 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:28:05,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:28:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:28:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:28:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:28:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:28:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:28:05,362 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:28:05,364 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:28:05,563 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2024-11-13 15:28:05,564 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:28:05,574 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:28:05,574 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:28:05,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:28:05 BoogieIcfgContainer [2024-11-13 15:28:05,575 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:28:05,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:28:05,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:28:05,582 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:28:05,582 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:28:04" (1/3) ... [2024-11-13 15:28:05,582 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cd85de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:28:05, skipping insertion in model container [2024-11-13 15:28:05,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:05" (2/3) ... [2024-11-13 15:28:05,583 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45cd85de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:28:05, skipping insertion in model container [2024-11-13 15:28:05,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:28:05" (3/3) ... [2024-11-13 15:28:05,584 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_8.i [2024-11-13 15:28:05,601 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:28:05,603 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_8.i that has 1 procedures, 27 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-13 15:28:05,674 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:28:05,691 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;@3a0367ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:28:05,691 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:28:05,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 15:28:05,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:28:05,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:28:05,704 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:28:05,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:28:05,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:28:05,710 INFO L85 PathProgramCache]: Analyzing trace with hash -469338024, now seen corresponding path program 1 times [2024-11-13 15:28:05,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:28:05,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858907759] [2024-11-13 15:28:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:28:05,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:28:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:28:05,874 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 15:28:05,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:28:05,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858907759] [2024-11-13 15:28:05,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858907759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:28:05,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:28:05,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:28:05,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024129501] [2024-11-13 15:28:05,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:28:05,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:28:05,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:28:05,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:28:05,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:28:05,913 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 15:28:05,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:28:05,924 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-11-13 15:28:05,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:28:05,925 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-13 15:28:05,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:28:05,930 INFO L225 Difference]: With dead ends: 47 [2024-11-13 15:28:05,931 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 15:28:05,933 INFO L431 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 [2024-11-13 15:28:05,936 INFO L432 NwaCegarLoop]: 31 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, 31 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 15:28:05,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:28:05,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 15:28:05,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 15:28:05,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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 15:28:05,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-13 15:28:05,966 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-13 15:28:05,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:28:05,967 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-13 15:28:05,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 15:28:05,967 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 15:28:05,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:28:05,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:28:05,968 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:28:05,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:28:05,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:28:05,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:28:05,969 INFO L85 PathProgramCache]: Analyzing trace with hash -412079722, now seen corresponding path program 1 times [2024-11-13 15:28:05,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:28:05,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319216548] [2024-11-13 15:28:05,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:28:05,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:28:05,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:28:05,997 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:28:06,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:28:06,025 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-13 15:28:06,025 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:28:06,027 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 15:28:06,029 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 15:28:06,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:28:06,033 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 15:28:06,046 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:28:06,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:28:06 BoogieIcfgContainer [2024-11-13 15:28:06,050 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:28:06,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:28:06,051 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:28:06,051 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:28:06,052 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:28:05" (3/4) ... [2024-11-13 15:28:06,054 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-13 15:28:06,055 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:28:06,056 INFO L158 Benchmark]: Toolchain (without parser) took 1401.52ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 45.0MB in the end (delta: 48.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 15:28:06,056 INFO L158 Benchmark]: CDTParser took 1.60ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:28:06,057 INFO L158 Benchmark]: CACSL2BoogieTranslator took 414.01ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 81.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:28:06,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.44ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:28:06,057 INFO L158 Benchmark]: Boogie Preprocessor took 69.64ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:28:06,058 INFO L158 Benchmark]: RCFGBuilder took 371.47ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 66.0MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:28:06,058 INFO L158 Benchmark]: TraceAbstraction took 472.71ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 45.4MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:28:06,059 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 117.4MB. Free memory was 45.4MB in the beginning and 45.0MB in the end (delta: 343.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:28:06,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.60ms. Allocated memory is still 167.8MB. Free memory is still 103.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 414.01ms. Allocated memory is still 117.4MB. Free memory was 93.6MB in the beginning and 81.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.44ms. Allocated memory is still 117.4MB. Free memory was 81.6MB in the beginning and 80.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.64ms. Allocated memory is still 117.4MB. Free memory was 80.1MB in the beginning and 78.2MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 371.47ms. Allocated memory is still 117.4MB. Free memory was 78.2MB in the beginning and 66.0MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 472.71ms. Allocated memory is still 117.4MB. Free memory was 65.7MB in the beginning and 45.4MB in the end (delta: 20.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 117.4MB. Free memory was 45.4MB in the beginning and 45.0MB in the end (delta: 343.7kB). 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: 102]: 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 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93, overapproximation of someBinaryArithmeticFLOAToperation at line 85, overapproximation of someBinaryArithmeticFLOAToperation at line 80. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: 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 1 procedures, 27 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, 31 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, 31 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=27occurred 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-13 15:28:06,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:28:08,854 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:28:08,936 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-13 15:28:08,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:28:08,949 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:28:09,012 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:28:09,015 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:28:09,015 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:28:09,026 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:28:09,026 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:28:09,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:28:09,026 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:28:09,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:28:09,027 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:28:09,027 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:28:09,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:28:09,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:28:09,027 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:28:09,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:28:09,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:28:09,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:28:09,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:28:09,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:28:09,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:28:09,033 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:28:09,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:28:09,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:28:09,034 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-13 15:28:09,034 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-13 15:28:09,034 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:28:09,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:28:09,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:28:09,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:28:09,034 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 -> c79b5b9c620a89b5ccbc8a9238defbac5dd93f8a16c11c7717d83a12d6f10e40 [2024-11-13 15:28:09,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:28:09,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:28:09,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:28:09,369 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:28:09,369 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:28:09,372 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/combinations/gcd_3+newton_1_8.i Unable to find full path for "g++" [2024-11-13 15:28:11,468 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:28:11,801 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:28:11,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i [2024-11-13 15:28:11,822 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/data/2bf4420a5/1a64d7ec7528488c93808b4d8bd98aa3/FLAG04b81d3f0 [2024-11-13 15:28:11,852 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/data/2bf4420a5/1a64d7ec7528488c93808b4d8bd98aa3 [2024-11-13 15:28:11,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:28:11,859 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:28:11,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:28:11,861 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:28:11,867 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:28:11,868 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:28:11" (1/1) ... [2024-11-13 15:28:11,871 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4ce717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:11, skipping insertion in model container [2024-11-13 15:28:11,872 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:28:11" (1/1) ... [2024-11-13 15:28:11,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:28:12,132 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2024-11-13 15:28:12,192 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2024-11-13 15:28:12,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:28:12,220 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:28:12,238 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[1226,1239] [2024-11-13 15:28:12,266 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_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/sv-benchmarks/c/combinations/gcd_3+newton_1_8.i[2820,2833] [2024-11-13 15:28:12,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:28:12,303 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:28:12,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12 WrapperNode [2024-11-13 15:28:12,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:28:12,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:28:12,306 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:28:12,306 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:28:12,315 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,332 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,377 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 81 [2024-11-13 15:28:12,381 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:28:12,381 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:28:12,382 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:28:12,382 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:28:12,390 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,391 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,394 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,413 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2024-11-13 15:28:12,413 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,414 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,422 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,430 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:28:12,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:28:12,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:28:12,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:28:12,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (1/1) ... [2024-11-13 15:28:12,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:28:12,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:28:12,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:28:12,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:28:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:28:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-13 15:28:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-13 15:28:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:28:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:28:12,581 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:28:12,584 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:28:23,732 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-13 15:28:23,733 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:28:23,747 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:28:23,747 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:28:23,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:28:23 BoogieIcfgContainer [2024-11-13 15:28:23,748 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:28:23,752 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:28:23,753 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:28:23,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:28:23,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:28:11" (1/3) ... [2024-11-13 15:28:23,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1e10a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:28:23, skipping insertion in model container [2024-11-13 15:28:23,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:28:12" (2/3) ... [2024-11-13 15:28:23,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1e10a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:28:23, skipping insertion in model container [2024-11-13 15:28:23,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:28:23" (3/3) ... [2024-11-13 15:28:23,763 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_1_8.i [2024-11-13 15:28:23,784 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:28:23,786 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_3+newton_1_8.i that has 1 procedures, 27 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-13 15:28:23,859 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:28:23,877 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;@77dbc19b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:28:23,877 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-13 15:28:23,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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 15:28:23,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:28:23,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:28:23,891 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:28:23,892 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:28:23,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:28:23,897 INFO L85 PathProgramCache]: Analyzing trace with hash -469338024, now seen corresponding path program 1 times [2024-11-13 15:28:23,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:28:23,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [836589668] [2024-11-13 15:28:23,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:28:23,912 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 15:28:23,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:28:23,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 15:28:23,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 15:28:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:28:25,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-13 15:28:25,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:28:25,389 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 15:28:25,389 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:28:25,390 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-13 15:28:25,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [836589668] [2024-11-13 15:28:25,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [836589668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:28:25,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:28:25,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:28:25,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022536770] [2024-11-13 15:28:25,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:28:25,399 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:28:25,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-13 15:28:25,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:28:25,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:28:25,428 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 15:28:25,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:28:25,445 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-11-13 15:28:25,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:28:25,447 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2024-11-13 15:28:25,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:28:25,456 INFO L225 Difference]: With dead ends: 47 [2024-11-13 15:28:25,457 INFO L226 Difference]: Without dead ends: 19 [2024-11-13 15:28:25,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 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 15:28:25,465 INFO L432 NwaCegarLoop]: 31 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, 31 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 15:28:25,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:28:25,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2024-11-13 15:28:25,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2024-11-13 15:28:25,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 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 15:28:25,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2024-11-13 15:28:25,513 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2024-11-13 15:28:25,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:28:25,514 INFO L471 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2024-11-13 15:28:25,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 15:28:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2024-11-13 15:28:25,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 15:28:25,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:28:25,516 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:28:25,545 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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)] Forceful destruction successful, exit code 0 [2024-11-13 15:28:25,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 15:28:25,718 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:28:25,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:28:25,719 INFO L85 PathProgramCache]: Analyzing trace with hash -412079722, now seen corresponding path program 1 times [2024-11-13 15:28:25,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-13 15:28:25,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461727473] [2024-11-13 15:28:25,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:28:25,720 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 15:28:25,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/mathsat [2024-11-13 15:28:25,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 15:28:25,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 15:28:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:28:29,322 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-13 15:28:34,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-13 15:28:34,763 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-13 15:28:34,763 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-13 15:28:34,765 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-13 15:28:34,768 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-13 15:28:34,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:28:34,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/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 15:28:34,972 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-13 15:28:34,995 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:28:34,999 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:28:34 BoogieIcfgContainer [2024-11-13 15:28:35,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:28:35,001 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:28:35,001 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:28:35,001 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:28:35,002 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:28:23" (3/4) ... [2024-11-13 15:28:35,003 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-13 15:28:35,043 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:28:35,043 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:28:35,044 INFO L158 Benchmark]: Toolchain (without parser) took 23185.52ms. Allocated memory is still 117.4MB. Free memory was 95.5MB in the beginning and 43.5MB in the end (delta: 52.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 15:28:35,045 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 83.9MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:28:35,046 INFO L158 Benchmark]: CACSL2BoogieTranslator took 443.89ms. Allocated memory is still 117.4MB. Free memory was 95.3MB in the beginning and 82.8MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:28:35,046 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.63ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:28:35,047 INFO L158 Benchmark]: Boogie Preprocessor took 51.78ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:28:35,048 INFO L158 Benchmark]: RCFGBuilder took 11314.28ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 66.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:28:35,048 INFO L158 Benchmark]: TraceAbstraction took 11247.51ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 45.3MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 15:28:35,049 INFO L158 Benchmark]: Witness Printer took 42.29ms. Allocated memory is still 117.4MB. Free memory was 45.3MB in the beginning and 43.5MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:28:35,052 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 83.9MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 443.89ms. Allocated memory is still 117.4MB. Free memory was 95.3MB in the beginning and 82.8MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.63ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.78ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 79.4MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 11314.28ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 66.9MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 11247.51ms. Allocated memory is still 117.4MB. Free memory was 66.3MB in the beginning and 45.3MB in the end (delta: 20.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 42.29ms. Allocated memory is still 117.4MB. Free memory was 45.3MB in the beginning and 43.5MB 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: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L75] COND FALSE !(!cond) [L91] RET assume_abort_if_not(IN > -2.0f && IN < 2.0f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\result=-1.0098297595977783] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\result=0.024888966232538223] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) [L102] reach_error() - UnprovableResult [Line: 27]: 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 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 11.1s, 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, 31 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, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred 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, 4.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 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 15:28:35,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_17b0ee4b-6044-4b3c-bbdb-0b2514a2c034/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE