./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_1_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB --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 92ec86adef8cb9d9932012bcdd4007cb403d7f8d56dfb46a7c8cdbf60f080fa5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:44:59,666 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:44:59,792 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:44:59,798 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:44:59,799 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:44:59,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:44:59,845 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:44:59,845 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:44:59,846 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:44:59,847 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:44:59,848 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:44:59,848 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:44:59,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:44:59,849 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:44:59,849 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:44:59,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:44:59,850 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:44:59,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:44:59,851 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:44:59,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:44:59,851 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:44:59,851 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:44:59,851 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:44:59,851 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:44:59,851 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:44:59,852 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:44:59,852 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:44:59,852 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:44:59,852 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:44:59,852 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:59,852 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:59,852 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:59,852 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:59,852 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:44:59,853 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:44:59,853 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:44:59,853 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:44:59,853 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:44:59,853 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:44:59,853 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:44:59,853 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:44:59,853 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:44:59,853 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:44:59,854 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:44:59,854 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:44:59,854 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:44:59,854 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:44:59,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:44:59,854 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 92ec86adef8cb9d9932012bcdd4007cb403d7f8d56dfb46a7c8cdbf60f080fa5 [2024-11-28 02:45:00,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:45:00,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:45:00,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:45:00,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:45:00,227 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:45:00,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/gcd_4+newton_1_4.i [2024-11-28 02:45:03,500 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data/f824297ff/3a450914f4bb49b793e0455567e2b990/FLAG9fc851232 [2024-11-28 02:45:03,879 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:45:03,883 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i [2024-11-28 02:45:03,903 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data/f824297ff/3a450914f4bb49b793e0455567e2b990/FLAG9fc851232 [2024-11-28 02:45:03,934 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data/f824297ff/3a450914f4bb49b793e0455567e2b990 [2024-11-28 02:45:03,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:45:03,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:45:03,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:03,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:45:03,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:45:03,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:03" (1/1) ... [2024-11-28 02:45:03,952 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f4e6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:03, skipping insertion in model container [2024-11-28 02:45:03,952 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:03" (1/1) ... [2024-11-28 02:45:03,981 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:45:04,191 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i[1224,1237] [2024-11-28 02:45:04,242 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i[2806,2819] [2024-11-28 02:45:04,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:04,255 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:45:04,272 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i[1224,1237] [2024-11-28 02:45:04,294 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i[2806,2819] [2024-11-28 02:45:04,295 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:04,314 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:45:04,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04 WrapperNode [2024-11-28 02:45:04,315 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:04,316 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:04,317 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:45:04,317 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:45:04,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,334 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,355 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 79 [2024-11-28 02:45:04,356 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:04,357 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:45:04,357 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:45:04,357 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:45:04,369 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,369 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,371 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,386 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]. [2024-11-28 02:45:04,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,386 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,393 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,394 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,398 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,401 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:45:04,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:45:04,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:45:04,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:45:04,406 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (1/1) ... [2024-11-28 02:45:04,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:04,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:04,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:45:04,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:45:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:45:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:45:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:45:04,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:45:04,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:45:04,485 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:45:04,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:45:04,575 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:45:04,578 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:45:04,787 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-28 02:45:04,788 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:45:04,797 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:45:04,798 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:45:04,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:04 BoogieIcfgContainer [2024-11-28 02:45:04,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:45:04,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:45:04,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:45:04,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:45:04,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:45:03" (1/3) ... [2024-11-28 02:45:04,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb253e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:45:04, skipping insertion in model container [2024-11-28 02:45:04,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:04" (2/3) ... [2024-11-28 02:45:04,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fb253e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:45:04, skipping insertion in model container [2024-11-28 02:45:04,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:04" (3/3) ... [2024-11-28 02:45:04,810 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_4.i [2024-11-28 02:45:04,829 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:45:04,831 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_4.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-28 02:45:04,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:45:04,912 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;@7e4e0b9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:45:04,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:45:04,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:45:04,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:45:04,925 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:04,927 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:04,928 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:04,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:04,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2024-11-28 02:45:04,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:04,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642216179] [2024-11-28 02:45:04,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:04,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:05,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:45:05,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642216179] [2024-11-28 02:45:05,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642216179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:05,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:05,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:45:05,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842342048] [2024-11-28 02:45:05,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:05,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:45:05,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:45:05,211 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:45:05,211 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:45:05,214 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2024-11-28 02:45:05,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:05,236 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-11-28 02:45:05,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:45:05,239 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 [2024-11-28 02:45:05,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:05,246 INFO L225 Difference]: With dead ends: 57 [2024-11-28 02:45:05,247 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 02:45:05,251 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:45:05,254 INFO L435 NwaCegarLoop]: 40 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, 40 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 [2024-11-28 02:45:05,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:45:05,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 02:45:05,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-28 02:45:05,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:45:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-28 02:45:05,305 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2024-11-28 02:45:05,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:05,305 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-28 02:45:05,306 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) [2024-11-28 02:45:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-28 02:45:05,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:45:05,308 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:05,308 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:05,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:45:05,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:05,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:05,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2024-11-28 02:45:05,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:45:05,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227333686] [2024-11-28 02:45:05,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:05,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:45:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:45:05,341 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:45:05,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:45:05,401 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:45:05,401 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:45:05,404 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-28 02:45:05,406 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-28 02:45:05,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:45:05,411 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 02:45:05,429 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:45:05,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:45:05 BoogieIcfgContainer [2024-11-28 02:45:05,433 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:45:05,434 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:45:05,434 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:45:05,435 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:45:05,436 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:04" (3/4) ... [2024-11-28 02:45:05,439 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 02:45:05,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:45:05,441 INFO L158 Benchmark]: Toolchain (without parser) took 1499.93ms. Allocated memory is still 142.6MB. Free memory was 119.3MB in the beginning and 70.5MB in the end (delta: 48.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 02:45:05,441 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:45:05,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.55ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.1MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:45:05,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.77ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 105.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:45:05,443 INFO L158 Benchmark]: Boogie Preprocessor took 46.36ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:45:05,443 INFO L158 Benchmark]: RCFGBuilder took 394.29ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 91.8MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:45:05,444 INFO L158 Benchmark]: TraceAbstraction took 633.17ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 70.7MB in the end (delta: 20.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 02:45:05,444 INFO L158 Benchmark]: Witness Printer took 5.81ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 70.5MB in the end (delta: 249.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:45:05,447 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 142.6MB. Free memory is still 79.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.55ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.1MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.77ms. Allocated memory is still 142.6MB. Free memory was 107.1MB in the beginning and 105.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.36ms. Allocated memory is still 142.6MB. Free memory was 105.5MB in the beginning and 104.0MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 394.29ms. Allocated memory is still 142.6MB. Free memory was 104.0MB in the beginning and 91.8MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 633.17ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 70.7MB in the end (delta: 20.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 5.81ms. Allocated memory is still 142.6MB. Free memory was 70.7MB in the beginning and 70.5MB in the end (delta: 249.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 109]: 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 98, overapproximation of someBinaryDOUBLEComparisonOperation at line 108, overapproximation of someBinaryArithmeticFLOAToperation at line 87, overapproximation of someBinaryArithmeticFLOAToperation at line 92, overapproximation of someBinaryArithmeticFLOAToperation at line 100. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L100] CALL, EXPR f(IN) [L87] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) [L109] 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 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 40 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, 40 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=33occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-28 02:45:05,477 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB --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 92ec86adef8cb9d9932012bcdd4007cb403d7f8d56dfb46a7c8cdbf60f080fa5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:45:08,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:45:08,952 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:45:08,964 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:45:08,964 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:45:08,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:45:08,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:45:08,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:45:08,999 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:45:09,000 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:45:09,000 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:45:09,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:45:09,001 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:45:09,001 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:45:09,001 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:45:09,001 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:45:09,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:45:09,002 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:45:09,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:45:09,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:45:09,002 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:45:09,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:45:09,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:45:09,003 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:45:09,003 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:45:09,003 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:45:09,003 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:45:09,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:45:09,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:45:09,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:45:09,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:45:09,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:45:09,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:45:09,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:45:09,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:09,005 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:45:09,005 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:45:09,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:45:09,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:45:09,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:09,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:45:09,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:45:09,005 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:45:09,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:45:09,006 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:45:09,006 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:45:09,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:45:09,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:45:09,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:45:09,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:45:09,006 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 92ec86adef8cb9d9932012bcdd4007cb403d7f8d56dfb46a7c8cdbf60f080fa5 [2024-11-28 02:45:09,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:45:09,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:45:09,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:45:09,366 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:45:09,366 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:45:09,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/gcd_4+newton_1_4.i [2024-11-28 02:45:12,788 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data/900aa9f3a/420bc80dcd02456bb7ed5ef0be2f6488/FLAG02e114954 [2024-11-28 02:45:13,121 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:45:13,125 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i [2024-11-28 02:45:13,158 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data/900aa9f3a/420bc80dcd02456bb7ed5ef0be2f6488/FLAG02e114954 [2024-11-28 02:45:13,372 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/data/900aa9f3a/420bc80dcd02456bb7ed5ef0be2f6488 [2024-11-28 02:45:13,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:45:13,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:45:13,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:13,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:45:13,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:45:13,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582bdeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13, skipping insertion in model container [2024-11-28 02:45:13,396 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,419 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:45:13,600 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i[1224,1237] [2024-11-28 02:45:13,639 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i[2806,2819] [2024-11-28 02:45:13,640 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:13,657 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:45:13,673 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i[1224,1237] [2024-11-28 02:45:13,687 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_e61fe810-9c6a-473e-9ff1-a737a5b820bc/sv-benchmarks/c/combinations/gcd_4+newton_1_4.i[2806,2819] [2024-11-28 02:45:13,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:45:13,710 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:45:13,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13 WrapperNode [2024-11-28 02:45:13,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:45:13,712 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:13,713 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:45:13,713 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:45:13,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,733 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,764 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 76 [2024-11-28 02:45:13,769 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:45:13,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:45:13,770 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:45:13,770 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:45:13,778 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,778 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,782 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,796 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]. [2024-11-28 02:45:13,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,796 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,805 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,806 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,810 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,812 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,814 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,817 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:45:13,818 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:45:13,818 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:45:13,818 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:45:13,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (1/1) ... [2024-11-28 02:45:13,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:45:13,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:45:13,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:45:13,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:45:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:45:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:45:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:45:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:45:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:45:13,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 02:45:13,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 02:45:14,007 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:45:14,010 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:45:24,753 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-28 02:45:24,753 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:45:24,764 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:45:24,766 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:45:24,766 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:24 BoogieIcfgContainer [2024-11-28 02:45:24,767 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:45:24,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:45:24,770 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:45:24,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:45:24,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:45:13" (1/3) ... [2024-11-28 02:45:24,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b69b52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:45:24, skipping insertion in model container [2024-11-28 02:45:24,778 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:45:13" (2/3) ... [2024-11-28 02:45:24,778 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b69b52d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:45:24, skipping insertion in model container [2024-11-28 02:45:24,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:24" (3/3) ... [2024-11-28 02:45:24,781 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_4.i [2024-11-28 02:45:24,799 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:45:24,800 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_4.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-28 02:45:24,884 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:45:24,906 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;@4f409fc7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:45:24,906 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 02:45:24,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-28 02:45:24,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:45:24,920 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:24,921 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:24,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:24,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:24,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2024-11-28 02:45:24,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:24,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1411056785] [2024-11-28 02:45:24,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:24,949 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 [2024-11-28 02:45:24,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:45:24,953 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:45:24,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:45:26,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:45:26,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:45:26,368 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:45:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:45:26,384 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:45:26,385 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:45:26,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1411056785] [2024-11-28 02:45:26,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1411056785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:45:26,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:45:26,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:45:26,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491383085] [2024-11-28 02:45:26,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:45:26,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:45:26,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:45:26,410 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:45:26,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:45:26,413 INFO L87 Difference]: Start difference. First operand has 33 states, 26 states have (on average 1.4615384615384615) internal successors, (38), 28 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2024-11-28 02:45:26,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:45:26,436 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-11-28 02:45:26,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:45:26,439 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 [2024-11-28 02:45:26,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:45:26,447 INFO L225 Difference]: With dead ends: 57 [2024-11-28 02:45:26,447 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 02:45:26,451 INFO L434 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 [2024-11-28 02:45:26,455 INFO L435 NwaCegarLoop]: 40 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, 40 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 [2024-11-28 02:45:26,456 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:45:26,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 02:45:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-28 02:45:26,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 20 states have (on average 1.35) internal successors, (27), 22 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 02:45:26,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-28 02:45:26,499 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2024-11-28 02:45:26,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:45:26,499 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-28 02:45:26,500 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) [2024-11-28 02:45:26,500 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-28 02:45:26,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 02:45:26,501 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:45:26,501 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:45:26,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:45:26,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:45:26,702 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:45:26,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:45:26,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2024-11-28 02:45:26,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:45:26,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136012989] [2024-11-28 02:45:26,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:45:26,704 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 [2024-11-28 02:45:26,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:45:26,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:45:26,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:49:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:49:16,134 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:49:36,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:49:36,530 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 02:49:36,531 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:49:36,532 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-28 02:49:36,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-28 02:49:36,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:49:36,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:49:36,738 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 02:49:36,768 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:49:36,772 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:49:36 BoogieIcfgContainer [2024-11-28 02:49:36,772 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:49:36,773 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:49:36,773 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:49:36,773 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:49:36,774 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:45:24" (3/4) ... [2024-11-28 02:49:36,775 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 02:49:36,818 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 11. [2024-11-28 02:49:36,864 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:49:36,864 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:49:36,865 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:49:36,865 INFO L158 Benchmark]: Toolchain (without parser) took 263485.55ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 80.8MB in the end (delta: 11.6MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-28 02:49:36,866 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:49:36,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.90ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.5MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:49:36,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.54ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:49:36,867 INFO L158 Benchmark]: Boogie Preprocessor took 47.68ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:49:36,867 INFO L158 Benchmark]: RCFGBuilder took 10949.55ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 63.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:49:36,868 INFO L158 Benchmark]: TraceAbstraction took 252002.58ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 85.3MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:49:36,872 INFO L158 Benchmark]: Witness Printer took 91.58ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 80.8MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:49:36,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 117.4MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.90ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 79.5MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.54ms. Allocated memory is still 117.4MB. Free memory was 79.5MB in the beginning and 78.0MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.68ms. Allocated memory is still 117.4MB. Free memory was 78.0MB in the beginning and 76.2MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 10949.55ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 63.1MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 252002.58ms. Allocated memory is still 117.4MB. Free memory was 62.6MB in the beginning and 85.3MB in the end (delta: -22.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 91.58ms. Allocated memory is still 117.4MB. Free memory was 85.3MB in the beginning and 80.8MB in the end (delta: 4.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 109]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L100] CALL, EXPR f(IN) [L87] 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=-0.6391425132751465] [L100] RET, EXPR f(IN) [L100] CALL, EXPR fp(IN) [L92] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\result=0.7694209218025208] [L100] RET, EXPR fp(IN) [L100] float x = IN - f(IN)/fp(IN); [L108] COND TRUE !(x < 0.1) [L109] 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 2 procedures, 33 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 251.9s, 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, 40 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, 40 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=33occurred 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, 230.6s 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, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:49:36,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e61fe810-9c6a-473e-9ff1-a737a5b820bc/bin/uautomizer-verify-aQ6SnzHsRB/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