./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX --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 9f2fc20b4290e3357852d4a72f1f9affad02e8aa6491d9be27053eca1342ea23 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:50:27,979 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:50:28,080 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:50:28,087 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:50:28,088 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:50:28,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:50:28,146 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:50:28,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:50:28,147 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:50:28,148 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:50:28,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:50:28,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:50:28,149 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:50:28,150 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:50:28,150 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:50:28,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:50:28,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:50:28,151 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:50:28,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:50:28,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:50:28,153 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:50:28,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:50:28,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:50:28,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:50:28,154 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:50:28,155 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:50:28,155 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:50:28,156 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:50:28,156 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:50:28,156 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:50:28,157 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:50:28,157 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:50:28,157 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:50:28,158 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:50:28,158 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:50:28,158 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:50:28,159 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:50:28,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:50:28,159 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:50:28,159 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:50:28,160 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:50:28,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:50:28,161 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f2fc20b4290e3357852d4a72f1f9affad02e8aa6491d9be27053eca1342ea23 [2024-11-08 17:50:28,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:50:28,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:50:28,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:50:28,523 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:50:28,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:50:28,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c Unable to find full path for "g++" [2024-11-08 17:50:30,548 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:50:30,797 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:50:30,797 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/sv-benchmarks/c/float-newlib/double_req_bl_1012a.c [2024-11-08 17:50:30,809 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/data/80b31692b/bc80909a5a684b11a4b33c61a02ffa61/FLAG67f70b4e5 [2024-11-08 17:50:31,161 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/data/80b31692b/bc80909a5a684b11a4b33c61a02ffa61 [2024-11-08 17:50:31,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:50:31,167 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:50:31,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:50:31,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:50:31,178 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:50:31,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,180 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72b7f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31, skipping insertion in model container [2024-11-08 17:50:31,180 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:50:31,426 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/sv-benchmarks/c/float-newlib/double_req_bl_1012a.c[1638,1651] [2024-11-08 17:50:31,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:50:31,450 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:50:31,475 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/sv-benchmarks/c/float-newlib/double_req_bl_1012a.c[1638,1651] [2024-11-08 17:50:31,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:50:31,492 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:50:31,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31 WrapperNode [2024-11-08 17:50:31,493 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:50:31,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:50:31,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:50:31,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:50:31,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,517 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,542 INFO L138 Inliner]: procedures = 18, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 97 [2024-11-08 17:50:31,542 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:50:31,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:50:31,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:50:31,544 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:50:31,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,558 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,574 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 2, 3]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2024-11-08 17:50:31,574 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,574 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,583 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,587 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,589 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,590 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:50:31,594 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:50:31,595 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:50:31,595 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:50:31,596 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (1/1) ... [2024-11-08 17:50:31,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:50:31,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:50:31,640 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:50:31,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:50:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:50:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:50:31,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:50:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 17:50:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-08 17:50:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:50:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-11-08 17:50:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-11-08 17:50:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-11-08 17:50:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-11-08 17:50:31,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:50:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:50:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 17:50:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-08 17:50:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-11-08 17:50:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-11-08 17:50:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-11-08 17:50:31,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-11-08 17:50:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:50:31,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:50:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:50:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:50:31,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 17:50:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-08 17:50:31,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:50:31,873 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:50:31,876 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:50:32,153 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-08 17:50:32,154 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:50:32,166 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:50:32,166 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-08 17:50:32,167 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:50:32 BoogieIcfgContainer [2024-11-08 17:50:32,167 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:50:32,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:50:32,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:50:32,180 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:50:32,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:50:31" (1/3) ... [2024-11-08 17:50:32,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd353c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:50:32, skipping insertion in model container [2024-11-08 17:50:32,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:31" (2/3) ... [2024-11-08 17:50:32,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dd353c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:50:32, skipping insertion in model container [2024-11-08 17:50:32,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:50:32" (3/3) ... [2024-11-08 17:50:32,184 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a.c [2024-11-08 17:50:32,208 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:50:32,210 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:50:32,278 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:50:32,286 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;@6340b5b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:50:32,286 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:50:32,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 28 states have internal predecessors, (41), 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 17:50:32,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 17:50:32,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:50:32,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:50:32,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:50:32,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:50:32,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1416121795, now seen corresponding path program 1 times [2024-11-08 17:50:32,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:50:32,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393299850] [2024-11-08 17:50:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:50:32,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:50:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:50:32,515 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 17:50:32,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:50:32,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393299850] [2024-11-08 17:50:32,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393299850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:50:32,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:50:32,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:50:32,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873245588] [2024-11-08 17:50:32,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:50:32,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:50:32,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:50:32,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:50:32,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:50:32,565 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 28 states have internal predecessors, (41), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 17:50:32,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:50:32,590 INFO L93 Difference]: Finished difference Result 56 states and 80 transitions. [2024-11-08 17:50:32,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:50:32,593 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2024-11-08 17:50:32,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:50:32,604 INFO L225 Difference]: With dead ends: 56 [2024-11-08 17:50:32,605 INFO L226 Difference]: Without dead ends: 26 [2024-11-08 17:50:32,609 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 17:50:32,613 INFO L432 NwaCegarLoop]: 34 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, 34 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 17:50:32,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:50:32,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-08 17:50:32,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-11-08 17:50:32,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 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 17:50:32,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-11-08 17:50:32,662 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 16 [2024-11-08 17:50:32,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:50:32,663 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-11-08 17:50:32,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 17:50:32,664 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-11-08 17:50:32,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 17:50:32,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:50:32,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:50:32,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:50:32,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:50:32,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:50:32,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1060098678, now seen corresponding path program 1 times [2024-11-08 17:50:32,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:50:32,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156140009] [2024-11-08 17:50:32,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:50:32,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:50:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:50:33,337 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 17:50:33,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:50:33,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156140009] [2024-11-08 17:50:33,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156140009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:50:33,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:50:33,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:50:33,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566251657] [2024-11-08 17:50:33,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:50:33,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:50:33,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:50:33,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:50:33,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:50:33,346 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 17:50:33,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:50:33,417 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2024-11-08 17:50:33,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:50:33,417 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 19 [2024-11-08 17:50:33,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:50:33,419 INFO L225 Difference]: With dead ends: 35 [2024-11-08 17:50:33,420 INFO L226 Difference]: Without dead ends: 30 [2024-11-08 17:50:33,420 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 17:50:33,423 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:50:33,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 66 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:50:33,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-08 17:50:33,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2024-11-08 17:50:33,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 28 states have internal predecessors, (34), 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 17:50:33,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2024-11-08 17:50:33,434 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 19 [2024-11-08 17:50:33,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:50:33,435 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2024-11-08 17:50:33,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 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 17:50:33,435 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2024-11-08 17:50:33,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 17:50:33,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:50:33,436 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:50:33,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:50:33,437 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:50:33,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:50:33,439 INFO L85 PathProgramCache]: Analyzing trace with hash 449596538, now seen corresponding path program 1 times [2024-11-08 17:50:33,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:50:33,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113566104] [2024-11-08 17:50:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:50:33,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:50:33,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:50:33,892 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 17:50:33,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:50:33,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113566104] [2024-11-08 17:50:33,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113566104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:50:33,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:50:33,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:50:33,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646940902] [2024-11-08 17:50:33,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:50:33,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:50:33,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:50:33,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:50:33,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:50:33,900 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 17:50:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:50:33,946 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-08 17:50:33,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 17:50:33,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 20 [2024-11-08 17:50:33,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:50:33,948 INFO L225 Difference]: With dead ends: 34 [2024-11-08 17:50:33,948 INFO L226 Difference]: Without dead ends: 29 [2024-11-08 17:50:33,948 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:50:33,951 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:50:33,953 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:50:33,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-08 17:50:33,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2024-11-08 17:50:33,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.16) internal successors, (29), 25 states have internal predecessors, (29), 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 17:50:33,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2024-11-08 17:50:33,960 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 20 [2024-11-08 17:50:33,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:50:33,962 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2024-11-08 17:50:33,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 5 states have internal predecessors, (20), 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 17:50:33,962 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2024-11-08 17:50:33,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-08 17:50:33,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:50:33,963 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:50:33,963 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:50:33,964 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:50:33,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:50:33,969 INFO L85 PathProgramCache]: Analyzing trace with hash 837695213, now seen corresponding path program 1 times [2024-11-08 17:50:33,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:50:33,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379582609] [2024-11-08 17:50:33,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:50:33,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:50:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:50:34,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 17:50:34,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 17:50:34,140 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-08 17:50:34,141 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-08 17:50:34,142 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:50:34,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 17:50:34,148 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 17:50:34,177 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:50:34,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:50:34 BoogieIcfgContainer [2024-11-08 17:50:34,186 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:50:34,186 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:50:34,187 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:50:34,187 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:50:34,187 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:50:32" (3/4) ... [2024-11-08 17:50:34,192 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 17:50:34,194 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:50:34,196 INFO L158 Benchmark]: Toolchain (without parser) took 3028.32ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 132.5MB in the beginning and 110.5MB in the end (delta: 22.0MB). Peak memory consumption was 54.7MB. Max. memory is 16.1GB. [2024-11-08 17:50:34,197 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:50:34,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 321.72ms. Allocated memory is still 159.4MB. Free memory was 132.3MB in the beginning and 120.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-11-08 17:50:34,199 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.87ms. Allocated memory is still 159.4MB. Free memory was 120.2MB in the beginning and 118.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:50:34,202 INFO L158 Benchmark]: Boogie Preprocessor took 50.31ms. Allocated memory is still 159.4MB. Free memory was 118.9MB in the beginning and 116.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:50:34,203 INFO L158 Benchmark]: RCFGBuilder took 573.12ms. Allocated memory is still 159.4MB. Free memory was 116.0MB in the beginning and 116.4MB in the end (delta: -411.0kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-08 17:50:34,204 INFO L158 Benchmark]: TraceAbstraction took 2014.23ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 115.4MB in the beginning and 111.6MB in the end (delta: 3.8MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2024-11-08 17:50:34,204 INFO L158 Benchmark]: Witness Printer took 7.92ms. Allocated memory is still 192.9MB. Free memory was 111.6MB in the beginning and 110.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:50:34,209 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 123.7MB. Free memory is still 97.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 321.72ms. Allocated memory is still 159.4MB. Free memory was 132.3MB in the beginning and 120.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.87ms. Allocated memory is still 159.4MB. Free memory was 120.2MB in the beginning and 118.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.31ms. Allocated memory is still 159.4MB. Free memory was 118.9MB in the beginning and 116.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 573.12ms. Allocated memory is still 159.4MB. Free memory was 116.0MB in the beginning and 116.4MB in the end (delta: -411.0kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 2014.23ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 115.4MB in the beginning and 111.6MB in the end (delta: 3.8MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. * Witness Printer took 7.92ms. Allocated memory is still 192.9MB. Free memory was 111.6MB in the beginning and 110.5MB in the end (delta: 1.1MB). 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 - UnprovableResult [Line: 75]: 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 bitwiseOr at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 70. Possible FailurePath: [L70] double x = 1.0 / 0.0; [L71] CALL, EXPR fabs_double(x) [L47] __uint32_t high; VAL [x=4294967317] [L49] ieee_double_shape_type gh_u; [L50] gh_u.value = (x) [L51] EXPR gh_u.parts.msw [L51] (high) = gh_u.parts.msw [L54] ieee_double_shape_type sh_u; [L55] sh_u.value = (x) [L56] sh_u.parts.msw = (high & 0x7fffffff) [L57] EXPR sh_u.value [L57] (x) = sh_u.value [L59] return x; VAL [\result=4294967317, high=9] [L71] RET, EXPR fabs_double(x) [L71] double res = fabs_double(x); [L74] CALL, EXPR isinf_double(res) [L33] __int32_t hx, lx; VAL [x=4294967317] [L35] ieee_double_shape_type ew_u; [L36] ew_u.value = (x) [L37] EXPR ew_u.parts.msw [L37] (hx) = ew_u.parts.msw [L38] EXPR ew_u.parts.lsw [L38] (lx) = ew_u.parts.lsw [L40] hx &= 0x7fffffff VAL [hx=0, lx=0, x=4294967317] [L41] EXPR lx | (-lx) VAL [hx=0, x=4294967317] [L41] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L42] hx = 0x7ff00000 - hx VAL [hx=2146435072, x=4294967317] [L43] EXPR hx | (-hx) VAL [x=4294967317] [L43] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L74] RET, EXPR isinf_double(res) [L74] COND TRUE !isinf_double(res) [L75] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 209 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 119 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39 IncrementalHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 90 mSDtfsCounter, 39 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 74 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 17:50:34,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX --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 9f2fc20b4290e3357852d4a72f1f9affad02e8aa6491d9be27053eca1342ea23 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:50:36,863 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:50:36,936 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-08 17:50:36,944 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:50:36,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:50:36,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:50:36,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:50:36,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:50:37,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:50:37,001 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:50:37,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:50:37,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:50:37,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:50:37,004 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:50:37,004 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:50:37,005 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:50:37,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:50:37,006 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:50:37,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:50:37,006 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:50:37,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:50:37,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:50:37,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:50:37,015 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 17:50:37,015 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 17:50:37,016 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:50:37,016 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 17:50:37,017 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:50:37,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:50:37,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:50:37,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:50:37,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:50:37,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:50:37,021 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:50:37,022 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:50:37,023 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:50:37,023 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:50:37,024 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:50:37,025 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-08 17:50:37,025 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 17:50:37,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:50:37,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:50:37,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:50:37,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:50:37,027 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f2fc20b4290e3357852d4a72f1f9affad02e8aa6491d9be27053eca1342ea23 [2024-11-08 17:50:37,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:50:37,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:50:37,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:50:37,552 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:50:37,552 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:50:37,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/float-newlib/double_req_bl_1012a.c Unable to find full path for "g++" [2024-11-08 17:50:39,892 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:50:40,212 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:50:40,212 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/sv-benchmarks/c/float-newlib/double_req_bl_1012a.c [2024-11-08 17:50:40,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/data/3bde3b06d/24b307a240b746b9b75a619ec63a96af/FLAG1db1c888e [2024-11-08 17:50:40,495 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/data/3bde3b06d/24b307a240b746b9b75a619ec63a96af [2024-11-08 17:50:40,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:50:40,499 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:50:40,500 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:50:40,500 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:50:40,508 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:50:40,509 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e940e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40, skipping insertion in model container [2024-11-08 17:50:40,512 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,538 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:50:40,772 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/sv-benchmarks/c/float-newlib/double_req_bl_1012a.c[1638,1651] [2024-11-08 17:50:40,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:50:40,794 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:50:40,835 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/sv-benchmarks/c/float-newlib/double_req_bl_1012a.c[1638,1651] [2024-11-08 17:50:40,836 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:50:40,873 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:50:40,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40 WrapperNode [2024-11-08 17:50:40,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:50:40,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:50:40,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:50:40,876 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:50:40,883 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,899 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,931 INFO L138 Inliner]: procedures = 21, calls = 27, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2024-11-08 17:50:40,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:50:40,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:50:40,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:50:40,934 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:50:40,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,949 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,977 INFO L175 MemorySlicer]: Split 10 memory accesses to 4 slices as follows [2, 3, 3, 2]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2024-11-08 17:50:40,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,978 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:40,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:41,010 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:41,012 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:41,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:41,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:50:41,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:50:41,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:50:41,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:50:41,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (1/1) ... [2024-11-08 17:50:41,053 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:50:41,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:50:41,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:50:41,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:50:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:50:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-08 17:50:41,167 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-08 17:50:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-08 17:50:41,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-08 17:50:41,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-08 17:50:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-08 17:50:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-08 17:50:41,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-08 17:50:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-08 17:50:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-08 17:50:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-08 17:50:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-08 17:50:41,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 17:50:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-08 17:50:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-08 17:50:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-08 17:50:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-08 17:50:41,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:50:41,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:50:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-08 17:50:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-08 17:50:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-08 17:50:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-08 17:50:41,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:50:41,314 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:50:41,317 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:50:41,553 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-08 17:50:41,553 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:50:41,565 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:50:41,565 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-08 17:50:41,565 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:50:41 BoogieIcfgContainer [2024-11-08 17:50:41,566 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:50:41,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:50:41,570 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:50:41,573 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:50:41,574 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:50:40" (1/3) ... [2024-11-08 17:50:41,574 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcbb6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:50:41, skipping insertion in model container [2024-11-08 17:50:41,575 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:50:40" (2/3) ... [2024-11-08 17:50:41,575 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcbb6d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:50:41, skipping insertion in model container [2024-11-08 17:50:41,576 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:50:41" (3/3) ... [2024-11-08 17:50:41,578 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1012a.c [2024-11-08 17:50:41,596 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:50:41,596 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:50:41,673 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:50:41,680 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;@7eae4760, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:50:41,681 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:50:41,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 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 17:50:41,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 17:50:41,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:50:41,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:50:41,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:50:41,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:50:41,704 INFO L85 PathProgramCache]: Analyzing trace with hash -187411240, now seen corresponding path program 1 times [2024-11-08 17:50:41,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:50:41,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730513524] [2024-11-08 17:50:41,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:50:41,718 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 17:50:41,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:50:41,722 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/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 17:50:41,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/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 17:50:41,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:50:41,889 INFO L255 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-08 17:50:41,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:50:41,913 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 17:50:41,914 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:50:41,914 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:50:41,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730513524] [2024-11-08 17:50:41,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1730513524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:50:41,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:50:41,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 17:50:41,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430370198] [2024-11-08 17:50:41,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:50:41,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 17:50:41,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:50:41,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 17:50:41,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 17:50:41,948 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 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) 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 17:50:41,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:50:41,965 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2024-11-08 17:50:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 17:50:41,970 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 17:50:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:50:41,977 INFO L225 Difference]: With dead ends: 34 [2024-11-08 17:50:41,977 INFO L226 Difference]: Without dead ends: 15 [2024-11-08 17:50:41,980 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 17:50:41,983 INFO L432 NwaCegarLoop]: 17 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, 17 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 17:50:41,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:50:42,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-11-08 17:50:42,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-11-08 17:50:42,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 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 17:50:42,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2024-11-08 17:50:42,018 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2024-11-08 17:50:42,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:50:42,018 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2024-11-08 17:50:42,018 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 17:50:42,019 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-11-08 17:50:42,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-08 17:50:42,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:50:42,020 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:50:42,024 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-08 17:50:42,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/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 17:50:42,223 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:50:42,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:50:42,225 INFO L85 PathProgramCache]: Analyzing trace with hash 944993457, now seen corresponding path program 1 times [2024-11-08 17:50:42,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-08 17:50:42,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1152802489] [2024-11-08 17:50:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:50:42,226 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 17:50:42,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/mathsat [2024-11-08 17:50:42,229 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/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 17:50:42,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/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 17:50:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:50:42,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 17:50:42,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:50:43,356 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 17:50:43,356 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:50:43,356 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-08 17:50:43,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1152802489] [2024-11-08 17:50:43,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1152802489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:50:43,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:50:43,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 17:50:43,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540061375] [2024-11-08 17:50:43,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:50:43,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 17:50:43,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-08 17:50:43,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 17:50:43,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 17:50:43,361 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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 17:50:43,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:50:43,905 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2024-11-08 17:50:43,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 17:50:43,907 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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 17:50:43,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:50:43,907 INFO L225 Difference]: With dead ends: 15 [2024-11-08 17:50:43,907 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 17:50:43,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-08 17:50:43,910 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:50:43,910 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 28 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:50:43,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 17:50:43,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 17:50:43,911 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 17:50:43,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 17:50:43,912 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-08 17:50:43,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:50:43,912 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 17:50:43,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 9 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 17:50:43,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 17:50:43,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 17:50:43,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 17:50:43,922 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/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 17:50:44,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/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 17:50:44,121 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-08 17:50:44,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 17:50:44,177 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 17:50:44,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 05:50:44 BoogieIcfgContainer [2024-11-08 17:50:44,198 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 17:50:44,198 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 17:50:44,199 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 17:50:44,199 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 17:50:44,199 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:50:41" (3/4) ... [2024-11-08 17:50:44,205 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 17:50:44,216 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-08 17:50:44,217 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 17:50:44,217 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-08 17:50:44,217 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 17:50:44,318 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 17:50:44,318 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 17:50:44,318 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 17:50:44,320 INFO L158 Benchmark]: Toolchain (without parser) took 3821.04ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 55.4MB in the beginning and 51.5MB in the end (delta: 3.9MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-08 17:50:44,320 INFO L158 Benchmark]: CDTParser took 1.29ms. Allocated memory is still 79.7MB. Free memory was 55.3MB in the beginning and 55.1MB in the end (delta: 149.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 17:50:44,321 INFO L158 Benchmark]: CACSL2BoogieTranslator took 374.49ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 41.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 17:50:44,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.93ms. Allocated memory is still 79.7MB. Free memory was 41.5MB in the beginning and 39.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 17:50:44,323 INFO L158 Benchmark]: Boogie Preprocessor took 90.64ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 58.6MB in the end (delta: -19.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2024-11-08 17:50:44,324 INFO L158 Benchmark]: RCFGBuilder took 529.86ms. Allocated memory is still 79.7MB. Free memory was 58.6MB in the beginning and 45.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 17:50:44,324 INFO L158 Benchmark]: TraceAbstraction took 2630.22ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 44.2MB in the beginning and 55.7MB in the end (delta: -11.5MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2024-11-08 17:50:44,324 INFO L158 Benchmark]: Witness Printer took 120.19ms. Allocated memory is still 102.8MB. Free memory was 55.7MB in the beginning and 51.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 17:50:44,329 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29ms. Allocated memory is still 79.7MB. Free memory was 55.3MB in the beginning and 55.1MB in the end (delta: 149.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 374.49ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 41.5MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.93ms. Allocated memory is still 79.7MB. Free memory was 41.5MB in the beginning and 39.6MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 90.64ms. Allocated memory is still 79.7MB. Free memory was 39.6MB in the beginning and 58.6MB in the end (delta: -19.0MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * RCFGBuilder took 529.86ms. Allocated memory is still 79.7MB. Free memory was 58.6MB in the beginning and 45.0MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2630.22ms. Allocated memory was 79.7MB in the beginning and 102.8MB in the end (delta: 23.1MB). Free memory was 44.2MB in the beginning and 55.7MB in the end (delta: -11.5MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Witness Printer took 120.19ms. Allocated memory is still 102.8MB. Free memory was 55.7MB in the beginning and 51.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 75]: 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 11, 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, 1.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 23 ConstructedInterpolants, 11 QuantifiedInterpolants, 269 SizeOfPredicates, 6 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 29 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-08 17:50:44,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a2ac4d5-2368-4a9b-95b8-13abe0690cf1/bin/uautomizer-verify-jihMAELWvX/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