./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:14:21,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:14:21,587 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:14:21,596 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:14:21,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:14:21,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:14:21,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:14:21,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:14:21,639 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:14:21,639 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:14:21,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:14:21,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:14:21,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:14:21,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:14:21,640 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:14:21,640 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:14:21,640 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:14:21,640 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:14:21,640 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:14:21,641 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:14:21,641 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:14:21,641 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:14:21,641 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:14:21,641 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:14:21,641 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:14:21,641 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:14:21,641 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:14:21,642 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:14:21,642 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:14:21,642 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:14:21,642 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:14:21,642 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:14:21,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:21,642 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:14:21,643 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:14:21,643 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:14:21,643 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:14:21,643 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:21,643 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:14:21,643 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:14:21,643 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:14:21,643 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:14:21,644 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:14:21,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:14:21,644 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:14:21,644 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:14:21,644 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:14:21,644 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:14:21,644 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 -> e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a [2024-11-28 05:14:21,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:14:21,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:14:21,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:14:21,966 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:14:21,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:14:21,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2024-11-28 05:14:25,144 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data/45eb49463/992a8ce0ac3d4d76a8ca4cd8a319e63e/FLAG455bab00b [2024-11-28 05:14:25,465 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:14:25,466 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2024-11-28 05:14:25,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data/45eb49463/992a8ce0ac3d4d76a8ca4cd8a319e63e/FLAG455bab00b [2024-11-28 05:14:25,717 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data/45eb49463/992a8ce0ac3d4d76a8ca4cd8a319e63e [2024-11-28 05:14:25,722 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:14:25,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:14:25,728 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:14:25,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:14:25,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:14:25,736 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:14:25" (1/1) ... [2024-11-28 05:14:25,739 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ae75765 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:25, skipping insertion in model container [2024-11-28 05:14:25,739 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:14:25" (1/1) ... [2024-11-28 05:14:25,764 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:14:25,986 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2024-11-28 05:14:26,019 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2024-11-28 05:14:26,021 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:14:26,034 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:14:26,050 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2024-11-28 05:14:26,063 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2024-11-28 05:14:26,064 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:14:26,087 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:14:26,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26 WrapperNode [2024-11-28 05:14:26,089 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:14:26,091 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:14:26,091 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:14:26,091 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:14:26,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,104 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,126 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 79 [2024-11-28 05:14:26,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:14:26,127 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:14:26,127 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:14:26,127 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:14:26,136 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,138 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,151 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 05:14:26,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,157 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,162 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,172 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,174 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:14:26,175 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:14:26,175 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:14:26,175 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:14:26,177 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (1/1) ... [2024-11-28 05:14:26,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:26,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:26,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:14:26,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:14:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:14:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:14:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:14:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:14:26,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:14:26,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:14:26,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:14:26,327 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:14:26,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:14:26,526 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-11-28 05:14:26,527 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:14:26,538 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:14:26,538 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 05:14:26,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:14:26 BoogieIcfgContainer [2024-11-28 05:14:26,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:14:26,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:14:26,542 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:14:26,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:14:26,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:14:25" (1/3) ... [2024-11-28 05:14:26,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b365d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:14:26, skipping insertion in model container [2024-11-28 05:14:26,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:26" (2/3) ... [2024-11-28 05:14:26,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48b365d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:14:26, skipping insertion in model container [2024-11-28 05:14:26,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:14:26" (3/3) ... [2024-11-28 05:14:26,550 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_5.i [2024-11-28 05:14:26,568 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:14:26,570 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_5.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-28 05:14:26,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:14:26,647 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;@7bffc81e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:14:26,647 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 05:14:26,652 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 05:14:26,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 05:14:26,659 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:26,659 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:26,660 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:26,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:26,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2024-11-28 05:14:26,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:26,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027467511] [2024-11-28 05:14:26,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:26,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:26,890 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 05:14:26,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:14:26,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027467511] [2024-11-28 05:14:26,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027467511] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:26,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:26,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:14:26,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271305397] [2024-11-28 05:14:26,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:26,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:14:26,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:14:26,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:14:26,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:14:26,929 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 05:14:26,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:26,956 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-11-28 05:14:26,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:14:26,958 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 05:14:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:26,965 INFO L225 Difference]: With dead ends: 57 [2024-11-28 05:14:26,965 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 05:14:26,968 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 05:14:26,972 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 05:14:26,973 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 05:14:26,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 05:14:27,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-28 05:14:27,006 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 05:14:27,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-28 05:14:27,014 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2024-11-28 05:14:27,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:27,014 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-28 05:14:27,014 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 05:14:27,014 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-28 05:14:27,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 05:14:27,015 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:27,015 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:27,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:14:27,016 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:27,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:27,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2024-11-28 05:14:27,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:14:27,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149736028] [2024-11-28 05:14:27,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:27,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:14:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:14:27,066 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:14:27,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:14:27,123 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 05:14:27,123 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:14:27,126 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-28 05:14:27,128 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-28 05:14:27,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:14:27,133 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 05:14:27,153 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:14:27,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:14:27 BoogieIcfgContainer [2024-11-28 05:14:27,161 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:14:27,162 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:14:27,162 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:14:27,162 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:14:27,163 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:14:26" (3/4) ... [2024-11-28 05:14:27,168 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 05:14:27,169 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:14:27,170 INFO L158 Benchmark]: Toolchain (without parser) took 1445.96ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 43.7MB in the end (delta: 49.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-28 05:14:27,172 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:14:27,173 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.43ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.6MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:14:27,173 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.92ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:14:27,173 INFO L158 Benchmark]: Boogie Preprocessor took 47.08ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:14:27,174 INFO L158 Benchmark]: RCFGBuilder took 364.31ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 65.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:14:27,174 INFO L158 Benchmark]: TraceAbstraction took 618.89ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 43.9MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-28 05:14:27,175 INFO L158 Benchmark]: Witness Printer took 7.53ms. Allocated memory is still 117.4MB. Free memory was 43.9MB in the beginning and 43.7MB in the end (delta: 194.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:14:27,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 117.4MB. Free memory is still 71.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.43ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 80.6MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.92ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 79.2MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.08ms. Allocated memory is still 117.4MB. Free memory was 79.2MB in the beginning and 77.5MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 364.31ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 65.7MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 618.89ms. Allocated memory is still 117.4MB. Free memory was 65.1MB in the beginning and 43.9MB in the end (delta: 21.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 7.53ms. Allocated memory is still 117.4MB. Free memory was 43.9MB in the beginning and 43.7MB in the end (delta: 194.7kB). 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: 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 100, overapproximation of someBinaryArithmeticFLOAToperation at line 92, overapproximation of someBinaryArithmeticFLOAToperation at line 87. Possible FailurePath: [L115] COND FALSE !(__VERIFIER_nondet_int()) [L118] CALL main2() [L97] float IN = __VERIFIER_nondet_float(); [L98] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [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 05:14:27,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/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 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:14:30,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:14:30,262 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 05:14:30,272 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:14:30,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:14:30,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:14:30,321 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:14:30,321 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:14:30,321 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:14:30,322 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:14:30,322 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:14:30,322 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:14:30,322 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:14:30,322 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:14:30,322 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:14:30,322 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:14:30,323 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:14:30,323 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:14:30,323 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:14:30,323 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:14:30,323 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:14:30,323 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:14:30,323 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:14:30,323 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 05:14:30,326 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 05:14:30,326 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 05:14:30,326 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:14:30,326 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:14:30,327 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:14:30,327 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:14:30,327 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:14:30,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:14:30,327 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:14:30,327 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:14:30,327 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:30,327 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:14:30,327 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:30,328 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:14:30,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:14:30,329 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:14:30,329 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 -> e1fa1a55806359256811455041f4c560095cd24f578da9545b403f8eeca2876a [2024-11-28 05:14:30,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:14:30,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:14:30,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:14:30,674 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:14:30,674 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:14:30,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2024-11-28 05:14:34,113 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data/e2899b3e9/740dca142bbb408fa167ae5e14bae262/FLAGac0c9cfbc [2024-11-28 05:14:34,390 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:14:34,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i [2024-11-28 05:14:34,399 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data/e2899b3e9/740dca142bbb408fa167ae5e14bae262/FLAGac0c9cfbc [2024-11-28 05:14:34,704 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/data/e2899b3e9/740dca142bbb408fa167ae5e14bae262 [2024-11-28 05:14:34,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:14:34,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:14:34,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:14:34,714 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:14:34,718 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:14:34,719 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:14:34" (1/1) ... [2024-11-28 05:14:34,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c8f36b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:34, skipping insertion in model container [2024-11-28 05:14:34,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:14:34" (1/1) ... [2024-11-28 05:14:34,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:14:34,953 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2024-11-28 05:14:35,010 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2024-11-28 05:14:35,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:14:35,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:14:35,062 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[1224,1237] [2024-11-28 05:14:35,090 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_4ef5d6fb-a1b7-481a-89a2-098b7451767e/sv-benchmarks/c/combinations/gcd_4+newton_1_5.i[2806,2819] [2024-11-28 05:14:35,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:14:35,122 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:14:35,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35 WrapperNode [2024-11-28 05:14:35,124 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:14:35,126 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:14:35,126 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:14:35,126 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:14:35,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,158 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,199 INFO L138 Inliner]: procedures = 28, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 76 [2024-11-28 05:14:35,203 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:14:35,205 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:14:35,205 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:14:35,206 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:14:35,218 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,224 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,249 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 05:14:35,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,267 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,280 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,285 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,286 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,293 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:14:35,294 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:14:35,298 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:14:35,298 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:14:35,300 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (1/1) ... [2024-11-28 05:14:35,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:14:35,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:14:35,355 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:14:35,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:14:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:14:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 05:14:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 05:14:35,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:14:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:14:35,402 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 05:14:35,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 05:14:35,519 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:14:35,522 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:14:46,329 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-28 05:14:46,329 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:14:46,339 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:14:46,339 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 05:14:46,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:14:46 BoogieIcfgContainer [2024-11-28 05:14:46,340 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:14:46,342 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:14:46,342 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:14:46,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:14:46,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:14:34" (1/3) ... [2024-11-28 05:14:46,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56178baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:14:46, skipping insertion in model container [2024-11-28 05:14:46,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:14:35" (2/3) ... [2024-11-28 05:14:46,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56178baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:14:46, skipping insertion in model container [2024-11-28 05:14:46,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:14:46" (3/3) ... [2024-11-28 05:14:46,351 INFO L128 eAbstractionObserver]: Analyzing ICFG gcd_4+newton_1_5.i [2024-11-28 05:14:46,368 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:14:46,371 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG gcd_4+newton_1_5.i that has 2 procedures, 33 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2024-11-28 05:14:46,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:14:46,452 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;@6179da03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:14:46,452 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-28 05:14:46,458 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 05:14:46,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 05:14:46,466 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:46,466 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:46,467 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:46,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:46,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1386425161, now seen corresponding path program 1 times [2024-11-28 05:14:46,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:14:46,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1264430286] [2024-11-28 05:14:46,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:46,490 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 05:14:46,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 05:14:46,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 05:14:46,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 05:14:47,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:14:47,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:14:47,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:14:47,772 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 05:14:47,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:14:47,773 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 05:14:47,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1264430286] [2024-11-28 05:14:47,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1264430286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:14:47,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:14:47,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:14:47,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629600084] [2024-11-28 05:14:47,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:14:47,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:14:47,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 05:14:47,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:14:47,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:14:47,796 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 05:14:47,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:14:47,814 INFO L93 Difference]: Finished difference Result 57 states and 74 transitions. [2024-11-28 05:14:47,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:14:47,817 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 05:14:47,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:14:47,825 INFO L225 Difference]: With dead ends: 57 [2024-11-28 05:14:47,825 INFO L226 Difference]: Without dead ends: 26 [2024-11-28 05:14:47,828 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 05:14:47,831 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 05:14:47,832 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 05:14:47,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-28 05:14:47,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-28 05:14:47,862 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 05:14:47,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-11-28 05:14:47,870 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 9 [2024-11-28 05:14:47,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:14:47,870 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-11-28 05:14:47,871 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 05:14:47,871 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-11-28 05:14:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-28 05:14:47,871 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:14:47,871 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:14:47,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 05:14:48,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 05:14:48,072 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:14:48,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:14:48,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1329166859, now seen corresponding path program 1 times [2024-11-28 05:14:48,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 05:14:48,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [246153163] [2024-11-28 05:14:48,074 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:14:48,074 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 05:14:48,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 05:14:48,077 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 05:14:48,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 05:14:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:14:59,420 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:15:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:15:23,744 INFO L130 FreeRefinementEngine]: Strategy FOX found a feasible trace [2024-11-28 05:15:23,745 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 05:15:23,746 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2024-11-28 05:15:23,748 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2024-11-28 05:15:23,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 05:15:23,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/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 05:15:23,954 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-28 05:15:23,976 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 05:15:23,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:15:23 BoogieIcfgContainer [2024-11-28 05:15:23,980 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 05:15:23,981 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:15:23,981 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:15:23,981 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:15:23,985 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:14:46" (3/4) ... [2024-11-28 05:15:23,985 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 05:15:24,024 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 11. [2024-11-28 05:15:24,084 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 05:15:24,085 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 05:15:24,085 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:15:24,086 INFO L158 Benchmark]: Toolchain (without parser) took 49377.50ms. Allocated memory is still 83.9MB. Free memory was 60.8MB in the beginning and 43.3MB in the end (delta: 17.5MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2024-11-28 05:15:24,087 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 83.9MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:15:24,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 412.00ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 47.6MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:15:24,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.50ms. Allocated memory is still 83.9MB. Free memory was 47.6MB in the beginning and 46.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:15:24,089 INFO L158 Benchmark]: Boogie Preprocessor took 88.39ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 44.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:15:24,089 INFO L158 Benchmark]: RCFGBuilder took 11045.62ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 31.8MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:15:24,090 INFO L158 Benchmark]: TraceAbstraction took 37638.10ms. Allocated memory is still 83.9MB. Free memory was 31.2MB in the beginning and 47.3MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:15:24,090 INFO L158 Benchmark]: Witness Printer took 104.68ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 43.3MB in the end (delta: 4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:15:24,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 83.9MB. Free memory is still 64.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 412.00ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 47.6MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.50ms. Allocated memory is still 83.9MB. Free memory was 47.6MB in the beginning and 46.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.39ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 44.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 11045.62ms. Allocated memory is still 83.9MB. Free memory was 44.3MB in the beginning and 31.8MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 37638.10ms. Allocated memory is still 83.9MB. Free memory was 31.2MB in the beginning and 47.3MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 104.68ms. Allocated memory is still 83.9MB. Free memory was 47.3MB in the beginning and 43.3MB in the end (delta: 4.0MB). 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: 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 > -1.0f && IN < 1.0f) [L82] COND FALSE !(!cond) [L98] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [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=-0.6931434273719788] [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=0.7214154601097107] [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: 37.5s, 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, 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, 12.4s 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 05:15:24,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4ef5d6fb-a1b7-481a-89a2-098b7451767e/bin/uautomizer-verify-aQ6SnzHsRB/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