./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1071.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8753b765717c2fe536e6a90ddefcee5a9aeaabafbc1bd4d26f8bbeefc7c2c477 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:33:03,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:33:03,476 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 12:33:03,483 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:33:03,486 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:33:03,516 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:33:03,516 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:33:03,517 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:33:03,519 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:33:03,520 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:33:03,520 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:33:03,521 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:33:03,521 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:33:03,521 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:33:03,522 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:33:03,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:33:03,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:33:03,523 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:33:03,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 12:33:03,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:33:03,530 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:33:03,531 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:33:03,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:33:03,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:33:03,531 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:33:03,531 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:33:03,532 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:33:03,532 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:33:03,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:33:03,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:33:03,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:33:03,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:33:03,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:33:03,533 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:33:03,533 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:33:03,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:33:03,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 12:33:03,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 12:33:03,534 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:33:03,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:33:03,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:33:03,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:33:03,536 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8753b765717c2fe536e6a90ddefcee5a9aeaabafbc1bd4d26f8bbeefc7c2c477 [2024-11-08 12:33:03,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:33:03,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:33:03,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:33:03,843 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:33:03,844 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:33:03,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2024-11-08 12:33:05,271 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:33:05,446 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:33:05,447 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2024-11-08 12:33:05,454 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/318af3e6b/46f678e3a39e4ac680134ac6afdf3b9a/FLAGcaf6da02f [2024-11-08 12:33:05,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/318af3e6b/46f678e3a39e4ac680134ac6afdf3b9a [2024-11-08 12:33:05,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:33:05,473 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:33:05,474 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:33:05,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:33:05,479 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:33:05,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a206c6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05, skipping insertion in model container [2024-11-08 12:33:05,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:33:05,714 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c[1883,1896] [2024-11-08 12:33:05,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:33:05,730 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:33:05,754 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c[1883,1896] [2024-11-08 12:33:05,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:33:05,775 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:33:05,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05 WrapperNode [2024-11-08 12:33:05,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:33:05,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:33:05,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:33:05,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:33:05,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,812 INFO L138 Inliner]: procedures = 16, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 139 [2024-11-08 12:33:05,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:33:05,813 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:33:05,813 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:33:05,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:33:05,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,843 INFO L175 MemorySlicer]: Split 14 memory accesses to 5 slices as follows [2, 3, 3, 3, 3]. 21 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 2, 1, 2, 2]. [2024-11-08 12:33:05,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,856 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,858 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,863 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:33:05,863 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:33:05,864 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:33:05,864 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:33:05,865 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (1/1) ... [2024-11-08 12:33:05,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:33:05,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:33:05,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 12:33:05,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 12:33:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:33:05,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 12:33:05,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-11-08 12:33:05,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 12:33:05,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 12:33:05,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 12:33:05,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 12:33:05,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-08 12:33:05,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 12:33:05,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 12:33:05,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 12:33:05,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 12:33:05,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-11-08 12:33:05,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:33:05,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:33:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 12:33:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 12:33:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 12:33:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 12:33:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-08 12:33:05,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:33:06,091 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:33:06,093 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:33:06,433 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-11-08 12:33:06,437 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:33:06,448 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:33:06,449 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 12:33:06,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:33:06 BoogieIcfgContainer [2024-11-08 12:33:06,450 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:33:06,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:33:06,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:33:06,455 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:33:06,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:33:05" (1/3) ... [2024-11-08 12:33:06,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4b67b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:33:06, skipping insertion in model container [2024-11-08 12:33:06,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:05" (2/3) ... [2024-11-08 12:33:06,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d4b67b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:33:06, skipping insertion in model container [2024-11-08 12:33:06,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:33:06" (3/3) ... [2024-11-08 12:33:06,460 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2024-11-08 12:33:06,475 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:33:06,476 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:33:06,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:33:06,550 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;@42c48be9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:33:06,550 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:33:06,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 42 states have internal predecessors, (65), 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) [2024-11-08 12:33:06,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 12:33:06,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:33:06,562 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:33:06,563 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:33:06,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:33:06,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1301358891, now seen corresponding path program 1 times [2024-11-08 12:33:06,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:33:06,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031102078] [2024-11-08 12:33:06,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:33:06,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:33:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:33:06,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:33:06,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:33:06,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031102078] [2024-11-08 12:33:06,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031102078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:33:06,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:33:06,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:33:06,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838019311] [2024-11-08 12:33:06,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:33:06,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:33:06,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:33:06,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:33:06,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:33:06,757 INFO L87 Difference]: Start difference. First operand has 43 states, 41 states have (on average 1.5853658536585367) internal successors, (65), 42 states have internal predecessors, (65), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-08 12:33:06,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:33:06,772 INFO L93 Difference]: Finished difference Result 84 states and 128 transitions. [2024-11-08 12:33:06,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:33:06,774 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2024-11-08 12:33:06,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:33:06,782 INFO L225 Difference]: With dead ends: 84 [2024-11-08 12:33:06,782 INFO L226 Difference]: Without dead ends: 40 [2024-11-08 12:33:06,785 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:33:06,788 INFO L432 NwaCegarLoop]: 56 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, 56 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 [2024-11-08 12:33:06,789 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:33:06,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-08 12:33:06,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-08 12:33:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.358974358974359) internal successors, (53), 39 states have internal predecessors, (53), 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) [2024-11-08 12:33:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 53 transitions. [2024-11-08 12:33:06,816 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 53 transitions. Word has length 13 [2024-11-08 12:33:06,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:33:06,816 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 53 transitions. [2024-11-08 12:33:06,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2024-11-08 12:33:06,817 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 53 transitions. [2024-11-08 12:33:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 12:33:06,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:33:06,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:33:06,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 12:33:06,818 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:33:06,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:33:06,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1737163186, now seen corresponding path program 1 times [2024-11-08 12:33:06,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:33:06,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825254764] [2024-11-08 12:33:06,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:33:06,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:33:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:33:07,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:33:07,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 12:33:07,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825254764] [2024-11-08 12:33:07,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825254764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:33:07,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:33:07,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 12:33:07,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141225821] [2024-11-08 12:33:07,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:33:07,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 12:33:07,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 12:33:07,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 12:33:07,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 12:33:07,024 INFO L87 Difference]: Start difference. First operand 40 states and 53 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-08 12:33:07,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:33:07,084 INFO L93 Difference]: Finished difference Result 70 states and 94 transitions. [2024-11-08 12:33:07,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 12:33:07,086 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2024-11-08 12:33:07,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:33:07,087 INFO L225 Difference]: With dead ends: 70 [2024-11-08 12:33:07,087 INFO L226 Difference]: Without dead ends: 43 [2024-11-08 12:33:07,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 12:33:07,089 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 12:33:07,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 133 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 12:33:07,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-08 12:33:07,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-08 12:33:07,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 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) [2024-11-08 12:33:07,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2024-11-08 12:33:07,098 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 14 [2024-11-08 12:33:07,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:33:07,098 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2024-11-08 12:33:07,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2024-11-08 12:33:07,099 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2024-11-08 12:33:07,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 12:33:07,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:33:07,100 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:33:07,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 12:33:07,100 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:33:07,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:33:07,101 INFO L85 PathProgramCache]: Analyzing trace with hash 520918643, now seen corresponding path program 1 times [2024-11-08 12:33:07,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 12:33:07,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290768367] [2024-11-08 12:33:07,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:33:07,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 12:33:07,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:33:07,140 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 12:33:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 12:33:07,216 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 12:33:07,216 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 12:33:07,218 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:33:07,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 12:33:07,227 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 12:33:07,249 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:33:07,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:33:07 BoogieIcfgContainer [2024-11-08 12:33:07,257 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:33:07,257 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:33:07,258 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:33:07,258 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:33:07,258 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:33:06" (3/4) ... [2024-11-08 12:33:07,260 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 12:33:07,262 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:33:07,262 INFO L158 Benchmark]: Toolchain (without parser) took 1789.41ms. Allocated memory is still 138.4MB. Free memory was 94.4MB in the beginning and 58.1MB in the end (delta: 36.4MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2024-11-08 12:33:07,262 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 100.7MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:33:07,263 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.55ms. Allocated memory is still 138.4MB. Free memory was 94.4MB in the beginning and 81.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 12:33:07,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.76ms. Allocated memory is still 138.4MB. Free memory was 81.4MB in the beginning and 79.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:33:07,264 INFO L158 Benchmark]: Boogie Preprocessor took 49.40ms. Allocated memory is still 138.4MB. Free memory was 79.3MB in the beginning and 76.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:33:07,264 INFO L158 Benchmark]: RCFGBuilder took 587.09ms. Allocated memory is still 138.4MB. Free memory was 76.4MB in the beginning and 101.4MB in the end (delta: -25.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 12:33:07,265 INFO L158 Benchmark]: TraceAbstraction took 804.53ms. Allocated memory is still 138.4MB. Free memory was 100.8MB in the beginning and 58.1MB in the end (delta: 42.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-08 12:33:07,265 INFO L158 Benchmark]: Witness Printer took 4.13ms. Allocated memory is still 138.4MB. Free memory is still 58.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:33:07,267 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 100.7MB. Free memory is still 68.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.55ms. Allocated memory is still 138.4MB. Free memory was 94.4MB in the beginning and 81.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.76ms. Allocated memory is still 138.4MB. Free memory was 81.4MB in the beginning and 79.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.40ms. Allocated memory is still 138.4MB. Free memory was 79.3MB in the beginning and 76.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 587.09ms. Allocated memory is still 138.4MB. Free memory was 76.4MB in the beginning and 101.4MB in the end (delta: -25.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 804.53ms. Allocated memory is still 138.4MB. Free memory was 100.8MB in the beginning and 58.1MB in the end (delta: 42.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.13ms. Allocated memory is still 138.4MB. Free memory is still 58.1MB. 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: 76]: 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 someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51. Possible FailurePath: [L70] double x = 0.0 / 0.0; [L72] CALL, EXPR trunc_double(x) [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; VAL [x=6441402379] [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 VAL [lsw=6441402369, msw=2146435072, signbit=0, x=6441402379] [L31] EXPR msw & 0x7ff00000 VAL [lsw=6441402369, msw=2146435072, signbit=0, x=6441402379] [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND FALSE !(exponent_less_1023 < 20) [L49] COND TRUE exponent_less_1023 > 51 [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; VAL [lsw=6441402369, msw=2146435072, signbit=0, x=6441402379] [L72] RET, EXPR trunc_double(x) [L72] double res = trunc_double(x); [L75] CALL, EXPR isnan_double(res) [L17] return x != x; VAL [\result=0] [L75] RET, EXPR isnan_double(res) [L75] COND TRUE !isnan_double(res) [L76] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 189 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 83 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 106 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 39 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 12:33:07,306 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 8753b765717c2fe536e6a90ddefcee5a9aeaabafbc1bd4d26f8bbeefc7c2c477 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 12:33:09,544 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 12:33:09,621 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 12:33:09,627 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 12:33:09,628 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 12:33:09,668 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 12:33:09,669 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 12:33:09,670 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 12:33:09,670 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 12:33:09,670 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 12:33:09,671 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 12:33:09,672 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 12:33:09,673 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 12:33:09,675 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 12:33:09,676 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 12:33:09,676 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 12:33:09,677 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 12:33:09,677 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 12:33:09,677 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 12:33:09,681 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 12:33:09,681 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 12:33:09,682 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 12:33:09,682 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 12:33:09,682 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 12:33:09,683 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 12:33:09,683 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 12:33:09,683 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 12:33:09,683 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 12:33:09,684 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 12:33:09,684 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 12:33:09,684 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 12:33:09,684 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 12:33:09,685 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 12:33:09,685 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 12:33:09,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:33:09,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 12:33:09,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 12:33:09,688 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 12:33:09,689 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-08 12:33:09,689 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 12:33:09,689 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 12:33:09,690 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 12:33:09,690 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 12:33:09,690 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 12:33:09,690 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8753b765717c2fe536e6a90ddefcee5a9aeaabafbc1bd4d26f8bbeefc7c2c477 [2024-11-08 12:33:10,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 12:33:10,062 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 12:33:10,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 12:33:10,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 12:33:10,067 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 12:33:10,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2024-11-08 12:33:11,569 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 12:33:11,781 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 12:33:11,782 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2024-11-08 12:33:11,789 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24dad2c28/d9c7e27b9c5f40b7bbacc0c3136359b5/FLAGea50cacd1 [2024-11-08 12:33:12,153 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24dad2c28/d9c7e27b9c5f40b7bbacc0c3136359b5 [2024-11-08 12:33:12,155 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 12:33:12,156 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 12:33:12,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 12:33:12,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 12:33:12,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 12:33:12,163 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1b0a0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12, skipping insertion in model container [2024-11-08 12:33:12,165 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,185 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 12:33:12,378 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c[1883,1896] [2024-11-08 12:33:12,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:33:12,399 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 12:33:12,433 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1071.c[1883,1896] [2024-11-08 12:33:12,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 12:33:12,460 INFO L204 MainTranslator]: Completed translation [2024-11-08 12:33:12,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12 WrapperNode [2024-11-08 12:33:12,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 12:33:12,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 12:33:12,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 12:33:12,462 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 12:33:12,470 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,507 INFO L138 Inliner]: procedures = 19, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2024-11-08 12:33:12,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 12:33:12,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 12:33:12,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 12:33:12,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 12:33:12,520 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,521 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,526 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,560 INFO L175 MemorySlicer]: Split 14 memory accesses to 5 slices as follows [2, 3, 3, 3, 3]. 21 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 2, 2, 2]. [2024-11-08 12:33:12,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,595 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,601 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,603 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,607 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 12:33:12,608 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 12:33:12,612 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 12:33:12,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 12:33:12,614 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (1/1) ... [2024-11-08 12:33:12,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 12:33:12,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 12:33:12,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 12:33:12,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 12:33:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 12:33:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-08 12:33:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-08 12:33:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-08 12:33:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-08 12:33:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-08 12:33:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-08 12:33:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-08 12:33:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-08 12:33:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-08 12:33:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-08 12:33:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 12:33:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 12:33:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 12:33:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 12:33:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-08 12:33:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 12:33:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 12:33:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 12:33:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 12:33:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 12:33:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-08 12:33:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 12:33:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 12:33:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 12:33:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 12:33:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 12:33:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 12:33:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-08 12:33:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 12:33:12,836 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 12:33:12,839 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 12:33:13,086 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 12:33:13,086 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 12:33:13,099 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 12:33:13,101 INFO L316 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-08 12:33:13,101 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:33:13 BoogieIcfgContainer [2024-11-08 12:33:13,101 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 12:33:13,103 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 12:33:13,105 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 12:33:13,108 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 12:33:13,109 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 12:33:12" (1/3) ... [2024-11-08 12:33:13,110 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d3c3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:33:13, skipping insertion in model container [2024-11-08 12:33:13,110 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 12:33:12" (2/3) ... [2024-11-08 12:33:13,111 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d3c3ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 12:33:13, skipping insertion in model container [2024-11-08 12:33:13,111 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:33:13" (3/3) ... [2024-11-08 12:33:13,113 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2024-11-08 12:33:13,132 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 12:33:13,133 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 12:33:13,202 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 12:33:13,209 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;@7019f8aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 12:33:13,210 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 12:33:13,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 23 states have internal predecessors, (36), 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) [2024-11-08 12:33:13,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 12:33:13,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:33:13,221 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:33:13,221 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:33:13,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:33:13,227 INFO L85 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2024-11-08 12:33:13,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:33:13,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518271276] [2024-11-08 12:33:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:33:13,240 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 [2024-11-08 12:33:13,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:33:13,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:33:13,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:33:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:33:13,402 INFO L255 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 12:33:13,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:33:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:33:13,422 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:33:13,422 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:33:13,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518271276] [2024-11-08 12:33:13,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518271276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:33:13,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:33:13,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 12:33:13,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343197666] [2024-11-08 12:33:13,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:33:13,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 12:33:13,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:33:13,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 12:33:13,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:33:13,455 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 23 states have internal predecessors, (36), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-11-08 12:33:13,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:33:13,467 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2024-11-08 12:33:13,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 12:33:13,469 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2024-11-08 12:33:13,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:33:13,475 INFO L225 Difference]: With dead ends: 46 [2024-11-08 12:33:13,475 INFO L226 Difference]: Without dead ends: 21 [2024-11-08 12:33:13,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 12:33:13,480 INFO L432 NwaCegarLoop]: 27 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, 27 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 [2024-11-08 12:33:13,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:33:13,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-08 12:33:13,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-08 12:33:13,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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) [2024-11-08 12:33:13,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-08 12:33:13,508 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2024-11-08 12:33:13,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:33:13,509 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-08 12:33:13,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2024-11-08 12:33:13,509 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-08 12:33:13,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 12:33:13,511 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:33:13,511 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:33:13,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-08 12:33:13,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:33:13,712 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:33:13,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:33:13,713 INFO L85 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2024-11-08 12:33:13,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:33:13,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1379049990] [2024-11-08 12:33:13,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:33:13,714 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 [2024-11-08 12:33:13,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:33:13,718 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:33:13,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:33:13,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:33:13,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 12:33:13,983 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:33:14,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:33:14,138 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:33:14,138 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:33:14,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1379049990] [2024-11-08 12:33:14,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1379049990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:33:14,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:33:14,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 12:33:14,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51021984] [2024-11-08 12:33:14,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:33:14,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 12:33:14,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:33:14,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 12:33:14,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 12:33:14,147 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-08 12:33:14,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:33:14,283 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2024-11-08 12:33:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 12:33:14,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2024-11-08 12:33:14,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:33:14,285 INFO L225 Difference]: With dead ends: 27 [2024-11-08 12:33:14,285 INFO L226 Difference]: Without dead ends: 20 [2024-11-08 12:33:14,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-08 12:33:14,287 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 12:33:14,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 76 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 12:33:14,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-08 12:33:14,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-08 12:33:14,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 12:33:14,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-11-08 12:33:14,291 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2024-11-08 12:33:14,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:33:14,291 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-11-08 12:33:14,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-08 12:33:14,292 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-08 12:33:14,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 12:33:14,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 12:33:14,292 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 12:33:14,299 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-08 12:33:14,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:33:14,494 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 12:33:14,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 12:33:14,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1398618101, now seen corresponding path program 1 times [2024-11-08 12:33:14,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-08 12:33:14,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1661782209] [2024-11-08 12:33:14,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 12:33:14,495 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 [2024-11-08 12:33:14,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-08 12:33:14,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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) [2024-11-08 12:33:14,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (4)] Waiting until timeout for monitored process [2024-11-08 12:33:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 12:33:14,577 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 12:33:14,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 12:33:14,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 12:33:14,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 12:33:14,828 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-08 12:33:14,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1661782209] [2024-11-08 12:33:14,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1661782209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 12:33:14,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 12:33:14,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 12:33:14,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995966834] [2024-11-08 12:33:14,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 12:33:14,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 12:33:14,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-08 12:33:14,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 12:33:14,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 12:33:14,830 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-08 12:33:14,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 12:33:14,990 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2024-11-08 12:33:14,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 12:33:14,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2024-11-08 12:33:14,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 12:33:14,992 INFO L225 Difference]: With dead ends: 20 [2024-11-08 12:33:14,992 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 12:33:14,992 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-08 12:33:14,993 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 12:33:14,994 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 12:33:14,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 12:33:14,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 12:33:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2024-11-08 12:33:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 12:33:14,995 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-08 12:33:14,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 12:33:14,995 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 12:33:14,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2024-11-08 12:33:14,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 12:33:14,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 12:33:15,000 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 12:33:15,011 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 (4)] Ended with exit code 0 [2024-11-08 12:33:15,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2024-11-08 12:33:15,204 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-08 12:33:15,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 12:33:15,261 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 12:33:15,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 12:33:15 BoogieIcfgContainer [2024-11-08 12:33:15,273 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 12:33:15,273 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 12:33:15,273 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 12:33:15,273 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 12:33:15,274 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 12:33:13" (3/4) ... [2024-11-08 12:33:15,276 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 12:33:15,286 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 12:33:15,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-08 12:33:15,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 12:33:15,288 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 12:33:15,438 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 12:33:15,438 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 12:33:15,438 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 12:33:15,439 INFO L158 Benchmark]: Toolchain (without parser) took 3282.83ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 46.0MB in the beginning and 54.5MB in the end (delta: -8.5MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-11-08 12:33:15,439 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 52.4MB. Free memory is still 29.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 12:33:15,439 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.62ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 32.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 12:33:15,439 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.03ms. Allocated memory is still 67.1MB. Free memory was 32.0MB in the beginning and 30.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:33:15,440 INFO L158 Benchmark]: Boogie Preprocessor took 97.44ms. Allocated memory is still 67.1MB. Free memory was 30.2MB in the beginning and 44.9MB in the end (delta: -14.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 12:33:15,440 INFO L158 Benchmark]: RCFGBuilder took 493.54ms. Allocated memory is still 67.1MB. Free memory was 44.9MB in the beginning and 30.0MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 12:33:15,440 INFO L158 Benchmark]: TraceAbstraction took 2169.25ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 29.4MB in the beginning and 42.9MB in the end (delta: -13.5MB). Peak memory consumption was 842.8kB. Max. memory is 16.1GB. [2024-11-08 12:33:15,440 INFO L158 Benchmark]: Witness Printer took 164.81ms. Allocated memory is still 81.8MB. Free memory was 42.9MB in the beginning and 54.5MB in the end (delta: -11.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 12:33:15,442 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 52.4MB. Free memory is still 29.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.62ms. Allocated memory is still 67.1MB. Free memory was 45.8MB in the beginning and 32.0MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.03ms. Allocated memory is still 67.1MB. Free memory was 32.0MB in the beginning and 30.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.44ms. Allocated memory is still 67.1MB. Free memory was 30.2MB in the beginning and 44.9MB in the end (delta: -14.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 493.54ms. Allocated memory is still 67.1MB. Free memory was 44.9MB in the beginning and 30.0MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2169.25ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 29.4MB in the beginning and 42.9MB in the end (delta: -13.5MB). Peak memory consumption was 842.8kB. Max. memory is 16.1GB. * Witness Printer took 164.81ms. Allocated memory is still 81.8MB. Free memory was 42.9MB in the beginning and 54.5MB in the end (delta: -11.5MB). Peak memory consumption was 2.1MB. 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 - PositiveResult [Line: 76]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 48 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 5 QuantifiedInterpolants, 191 SizeOfPredicates, 6 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-08 12:33:15,476 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE