./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:24:37,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:24:37,897 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-06 22:24:37,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:24:37,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:24:37,932 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:24:37,932 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:24:37,933 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:24:37,934 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:24:37,934 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:24:37,935 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:24:37,936 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:24:37,936 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:24:37,937 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:24:37,937 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:24:37,938 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:24:37,938 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:24:37,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:24:37,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:24:37,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:24:37,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:24:37,941 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:24:37,941 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:24:37,942 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:24:37,942 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:24:37,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:24:37,943 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:24:37,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:24:37,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:24:37,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:24:37,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:24:37,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:24:37,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:24:37,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:24:37,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:24:37,947 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:24:37,948 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:24:37,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:24:37,948 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:24:37,949 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 [2023-11-06 22:24:38,207 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:24:38,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:24:38,241 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:24:38,243 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:24:38,244 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:24:38,245 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i [2023-11-06 22:24:41,437 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:24:41,670 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:24:41,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i [2023-11-06 22:24:41,681 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/data/e6d61875c/b10dec81af9446b49febcbbfe5fffbf5/FLAG502427b39 [2023-11-06 22:24:41,698 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/data/e6d61875c/b10dec81af9446b49febcbbfe5fffbf5 [2023-11-06 22:24:41,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:24:41,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:24:41,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:24:41,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:24:41,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:24:41,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:41" (1/1) ... [2023-11-06 22:24:41,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a75ece1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:41, skipping insertion in model container [2023-11-06 22:24:41,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:41" (1/1) ... [2023-11-06 22:24:41,740 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:24:41,952 WARN L240 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_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239] [2023-11-06 22:24:41,999 WARN L240 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_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799] [2023-11-06 22:24:42,000 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:24:42,012 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:24:42,026 WARN L240 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_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239] [2023-11-06 22:24:42,038 WARN L240 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_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799] [2023-11-06 22:24:42,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:24:42,055 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:24:42,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42 WrapperNode [2023-11-06 22:24:42,056 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:24:42,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:24:42,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:24:42,058 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:24:42,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,100 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 89 [2023-11-06 22:24:42,101 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:24:42,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:24:42,102 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:24:42,102 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:24:42,113 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,114 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,116 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,116 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,122 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,127 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:24:42,136 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:24:42,136 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:24:42,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:24:42,138 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (1/1) ... [2023-11-06 22:24:42,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:24:42,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:42,171 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:24:42,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:24:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:24:42,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:24:42,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:24:42,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:24:42,324 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:24:42,329 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:24:42,620 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:24:42,628 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:24:42,629 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:24:42,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:42 BoogieIcfgContainer [2023-11-06 22:24:42,633 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:24:42,639 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:24:42,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:24:42,644 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:24:42,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:24:41" (1/3) ... [2023-11-06 22:24:42,645 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2636e0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:42, skipping insertion in model container [2023-11-06 22:24:42,645 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:42" (2/3) ... [2023-11-06 22:24:42,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2636e0e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:42, skipping insertion in model container [2023-11-06 22:24:42,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:42" (3/3) ... [2023-11-06 22:24:42,649 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_4.i [2023-11-06 22:24:42,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:24:42,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:24:42,739 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:24:42,748 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7a5f084b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:24:42,749 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 22:24:42,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:42,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:24:42,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:42,765 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:42,766 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:42,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:42,775 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2023-11-06 22:24:42,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:42,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705900516] [2023-11-06 22:24:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:42,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:42,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:42,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:24:42,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705900516] [2023-11-06 22:24:42,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705900516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:42,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:42,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:24:43,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686438053] [2023-11-06 22:24:43,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:43,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:24:43,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:24:43,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:24:43,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:24:43,055 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:43,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:43,070 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2023-11-06 22:24:43,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:24:43,072 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 [2023-11-06 22:24:43,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:43,081 INFO L225 Difference]: With dead ends: 46 [2023-11-06 22:24:43,081 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 22:24:43,084 INFO L412 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 [2023-11-06 22:24:43,088 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:43,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:24:43,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 22:24:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-06 22:24:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:43,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-06 22:24:43,122 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2023-11-06 22:24:43,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:43,122 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-06 22:24:43,122 INFO L496 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) [2023-11-06 22:24:43,123 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-06 22:24:43,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:24:43,123 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:43,124 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:43,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:24:43,124 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:43,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:43,125 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2023-11-06 22:24:43,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:24:43,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217244259] [2023-11-06 22:24:43,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:43,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:24:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:24:43,167 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:24:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:24:43,218 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:24:43,218 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:24:43,220 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-06 22:24:43,222 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-06 22:24:43,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:24:43,226 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:24:43,230 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:24:43,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:24:43 BoogieIcfgContainer [2023-11-06 22:24:43,262 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:24:43,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:24:43,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:24:43,263 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:24:43,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:42" (3/4) ... [2023-11-06 22:24:43,266 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:24:43,267 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:24:43,268 INFO L158 Benchmark]: Toolchain (without parser) took 1564.84ms. Allocated memory is still 148.9MB. Free memory was 112.6MB in the beginning and 59.4MB in the end (delta: 53.2MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-11-06 22:24:43,268 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 63.0MB in the beginning and 62.9MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:24:43,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.87ms. Allocated memory is still 148.9MB. Free memory was 112.6MB in the beginning and 100.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:24:43,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.57ms. Allocated memory is still 148.9MB. Free memory was 100.8MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:24:43,270 INFO L158 Benchmark]: Boogie Preprocessor took 29.84ms. Allocated memory is still 148.9MB. Free memory was 98.7MB in the beginning and 97.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:24:43,271 INFO L158 Benchmark]: RCFGBuilder took 497.20ms. Allocated memory is still 148.9MB. Free memory was 97.1MB in the beginning and 84.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:24:43,272 INFO L158 Benchmark]: TraceAbstraction took 623.32ms. Allocated memory is still 148.9MB. Free memory was 84.0MB in the beginning and 59.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-06 22:24:43,272 INFO L158 Benchmark]: Witness Printer took 4.28ms. Allocated memory is still 148.9MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:24:43,275 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 90.2MB. Free memory was 63.0MB in the beginning and 62.9MB in the end (delta: 34.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.87ms. Allocated memory is still 148.9MB. Free memory was 112.6MB in the beginning and 100.8MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.57ms. Allocated memory is still 148.9MB. Free memory was 100.8MB in the beginning and 98.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.84ms. Allocated memory is still 148.9MB. Free memory was 98.7MB in the beginning and 97.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 497.20ms. Allocated memory is still 148.9MB. Free memory was 97.1MB in the beginning and 84.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 623.32ms. Allocated memory is still 148.9MB. Free memory was 84.0MB in the beginning and 59.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.28ms. Allocated memory is still 148.9MB. Free memory is still 59.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 102]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 91, overapproximation of someBinaryDOUBLEComparisonOperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 93. Possible FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=109, x=109] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=109, x=109] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=109] [L102] reach_error() VAL [IN=109] - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-06 22:24:43,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:24:46,158 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:24:46,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-06 22:24:46,267 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:24:46,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:24:46,293 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:24:46,294 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:24:46,295 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:24:46,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:24:46,296 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:24:46,297 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:24:46,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:24:46,298 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:24:46,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:24:46,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:24:46,300 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:24:46,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:24:46,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:24:46,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:24:46,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:24:46,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:24:46,304 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-06 22:24:46,305 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-06 22:24:46,305 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-06 22:24:46,306 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:24:46,306 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:24:46,307 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:24:46,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:24:46,308 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:24:46,308 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:24:46,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:24:46,309 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:24:46,310 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:24:46,310 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:24:46,310 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-06 22:24:46,311 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-06 22:24:46,311 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:24:46,312 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:24:46,312 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:24:46,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:24:46,313 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-06 22:24:46,313 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:24:46,313 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad34237e996cd331563e8b065d0d5380e94c9435b4bac2fb1e22d28e3c8a5cb6 [2023-11-06 22:24:46,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:24:46,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:24:46,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:24:46,770 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:24:46,771 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:24:46,772 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/combinations/gcd_1+newton_1_4.i [2023-11-06 22:24:50,054 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:24:50,320 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:24:50,320 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i [2023-11-06 22:24:50,330 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/data/5ec6da1de/5e6e64fec7e146dca134a8dd59c4776c/FLAG7aa7f64dd [2023-11-06 22:24:50,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/data/5ec6da1de/5e6e64fec7e146dca134a8dd59c4776c [2023-11-06 22:24:50,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:24:50,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:24:50,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:24:50,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:24:50,356 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:24:50,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,358 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76ea7ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50, skipping insertion in model container [2023-11-06 22:24:50,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,383 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:24:50,582 WARN L240 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_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239] [2023-11-06 22:24:50,612 WARN L240 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_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799] [2023-11-06 22:24:50,614 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:24:50,632 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:24:50,647 WARN L240 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_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[1226,1239] [2023-11-06 22:24:50,660 WARN L240 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_913b8624-79c2-4d32-9d13-d1b3d664d439/sv-benchmarks/c/combinations/gcd_1+newton_1_4.i[2786,2799] [2023-11-06 22:24:50,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:24:50,679 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:24:50,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50 WrapperNode [2023-11-06 22:24:50,680 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:24:50,681 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:24:50,682 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:24:50,682 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:24:50,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,700 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,741 INFO L138 Inliner]: procedures = 28, calls = 22, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 84 [2023-11-06 22:24:50,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:24:50,742 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:24:50,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:24:50,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:24:50,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,758 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,758 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,768 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,771 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,780 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:24:50,781 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:24:50,782 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:24:50,782 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:24:50,783 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (1/1) ... [2023-11-06 22:24:50,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:24:50,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:24:50,845 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:24:50,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:24:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:24:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:24:50,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:24:50,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:24:51,017 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:24:51,019 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:24:58,211 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:24:58,218 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:24:58,218 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:24:58,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:58 BoogieIcfgContainer [2023-11-06 22:24:58,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:24:58,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:24:58,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:24:58,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:24:58,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:24:50" (1/3) ... [2023-11-06 22:24:58,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f29a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:58, skipping insertion in model container [2023-11-06 22:24:58,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:24:50" (2/3) ... [2023-11-06 22:24:58,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f29a85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:24:58, skipping insertion in model container [2023-11-06 22:24:58,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:58" (3/3) ... [2023-11-06 22:24:58,231 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_1+newton_1_4.i [2023-11-06 22:24:58,254 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:24:58,254 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-06 22:24:58,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:24:58,317 INFO L357 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@d389c0e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:24:58,318 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-06 22:24:58,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:58,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:24:58,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:58,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:58,331 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:58,337 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:58,338 INFO L85 PathProgramCache]: Analyzing trace with hash 447749113, now seen corresponding path program 1 times [2023-11-06 22:24:58,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:58,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [51434798] [2023-11-06 22:24:58,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:58,352 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 [2023-11-06 22:24:58,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:58,362 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:24:58,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:24:59,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:24:59,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:24:59,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:24:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:24:59,675 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:24:59,676 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:24:59,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [51434798] [2023-11-06 22:24:59,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [51434798] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:24:59,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:24:59,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:24:59,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884713712] [2023-11-06 22:24:59,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:24:59,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:24:59,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:24:59,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:24:59,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:24:59,717 INFO L87 Difference]: Start difference. First operand has 27 states, 24 states have (on average 1.4583333333333333) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:59,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:24:59,731 INFO L93 Difference]: Finished difference Result 46 states and 55 transitions. [2023-11-06 22:24:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:24:59,733 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 [2023-11-06 22:24:59,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:24:59,741 INFO L225 Difference]: With dead ends: 46 [2023-11-06 22:24:59,741 INFO L226 Difference]: Without dead ends: 19 [2023-11-06 22:24:59,744 INFO L412 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 [2023-11-06 22:24:59,747 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:24:59,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:24:59,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-06 22:24:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-06 22:24:59,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:24:59,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-06 22:24:59,776 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 9 [2023-11-06 22:24:59,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:24:59,777 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-06 22:24:59,777 INFO L496 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) [2023-11-06 22:24:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-06 22:24:59,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-06 22:24:59,778 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:24:59,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:24:59,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:24:59,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:24:59,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 22:24:59,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:24:59,983 INFO L85 PathProgramCache]: Analyzing trace with hash 505007415, now seen corresponding path program 1 times [2023-11-06 22:24:59,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:24:59,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [89196422] [2023-11-06 22:24:59,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:24:59,984 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 [2023-11-06 22:24:59,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:24:59,986 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/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) [2023-11-06 22:24:59,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:25:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:25:05,268 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:25:08,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:25:08,151 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 22:25:08,151 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:25:08,153 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-06 22:25:08,155 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-06 22:25:08,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:25:08,355 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/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 [2023-11-06 22:25:08,359 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-06 22:25:08,364 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:25:08,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:25:08 BoogieIcfgContainer [2023-11-06 22:25:08,434 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:25:08,435 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:25:08,435 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:25:08,436 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:25:08,436 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:24:58" (3/4) ... [2023-11-06 22:25:08,437 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-06 22:25:08,517 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:25:08,517 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:25:08,517 INFO L158 Benchmark]: Toolchain (without parser) took 18169.28ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 47.3MB in the beginning and 79.3MB in the end (delta: -32.0MB). Peak memory consumption was 40.6MB. Max. memory is 16.1GB. [2023-11-06 22:25:08,518 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:25:08,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.11ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 34.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:25:08,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.01ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 34.9MB in the beginning and 82.1MB in the end (delta: -47.2MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2023-11-06 22:25:08,520 INFO L158 Benchmark]: Boogie Preprocessor took 38.56ms. Allocated memory is still 102.8MB. Free memory was 82.1MB in the beginning and 80.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:25:08,521 INFO L158 Benchmark]: RCFGBuilder took 7439.77ms. Allocated memory is still 102.8MB. Free memory was 80.5MB in the beginning and 68.6MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:25:08,521 INFO L158 Benchmark]: TraceAbstraction took 10210.29ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 43.4MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-06 22:25:08,522 INFO L158 Benchmark]: Witness Printer took 81.74ms. Allocated memory is still 102.8MB. Free memory was 43.4MB in the beginning and 79.3MB in the end (delta: -35.9MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2023-11-06 22:25:08,527 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 71.3MB. Free memory is still 47.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.11ms. Allocated memory is still 71.3MB. Free memory was 47.1MB in the beginning and 34.9MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.01ms. Allocated memory was 71.3MB in the beginning and 102.8MB in the end (delta: 31.5MB). Free memory was 34.9MB in the beginning and 82.1MB in the end (delta: -47.2MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.56ms. Allocated memory is still 102.8MB. Free memory was 82.1MB in the beginning and 80.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 7439.77ms. Allocated memory is still 102.8MB. Free memory was 80.5MB in the beginning and 68.6MB in the end (delta: 11.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10210.29ms. Allocated memory is still 102.8MB. Free memory was 67.9MB in the beginning and 43.4MB in the end (delta: 24.5MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 81.74ms. Allocated memory is still 102.8MB. Free memory was 43.4MB in the beginning and 79.3MB in the end (delta: -35.9MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 102]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L108] COND FALSE !(__VERIFIER_nondet_int()) [L111] CALL main2() [L90] float IN = __VERIFIER_nondet_float(); [L91] CALL assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L75] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L91] RET assume_abort_if_not(IN > -0.8f && IN < 0.8f) [L93] CALL, EXPR f(IN) [L80] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.7500082850456238, \result=-0.6816975474357605, x=-0.7500082850456238] [L93] RET, EXPR f(IN) [L93] CALL, EXPR fp(IN) [L85] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.7500082850456238, \result=0.7321751713752747, x=-0.7500082850456238] [L93] RET, EXPR fp(IN) [L93] float x = IN - f(IN)/fp(IN); [L101] COND TRUE !(x < 0.1) VAL [IN=-0.7500082850456238, x=0.18104970455169678] [L102] reach_error() VAL [IN=-0.7500082850456238, x=0.18104970455169678] - UnprovableResult [Line: 27]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 27 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 31 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 6.4s 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:25:08,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_913b8624-79c2-4d32-9d13-d1b3d664d439/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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