./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d0e6bdf4ddc5b5e0cadfb452142b6477bf8c78b59a2e6398c4f283004048468 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:05:41,260 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:05:41,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-26 12:05:41,388 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:05:41,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:05:41,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:05:41,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:05:41,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:05:41,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:05:41,436 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:05:41,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:05:41,438 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:05:41,439 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:05:41,440 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:05:41,441 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:05:41,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:05:41,442 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:05:41,442 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 12:05:41,442 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:05:41,443 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 12:05:41,443 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:05:41,445 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:05:41,445 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:05:41,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:05:41,446 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:05:41,447 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:05:41,447 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 12:05:41,447 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:05:41,448 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:05:41,449 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:05:41,450 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:05:41,450 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:05:41,451 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:05:41,451 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:41,451 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:05:41,451 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:05:41,452 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:05:41,452 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:05:41,452 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:05:41,452 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:05:41,452 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:05:41,453 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:05:41,453 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:05:41,453 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:05:41,454 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_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d0e6bdf4ddc5b5e0cadfb452142b6477bf8c78b59a2e6398c4f283004048468 [2023-11-26 12:05:41,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:05:41,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:05:41,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:05:41,876 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:05:41,877 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:05:41,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i [2023-11-26 12:05:45,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:05:45,293 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:05:45,301 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/sv-benchmarks/c/recursified_nla-digbench/recursified_divbin.i [2023-11-26 12:05:45,310 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/data/c0d8d5f17/e8183449f1da411b9c82244a2c1c57a4/FLAG7beee1d06 [2023-11-26 12:05:45,326 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/data/c0d8d5f17/e8183449f1da411b9c82244a2c1c57a4 [2023-11-26 12:05:45,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:05:45,331 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:05:45,332 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:45,333 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:05:45,341 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:05:45,342 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310eaa36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45, skipping insertion in model container [2023-11-26 12:05:45,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,378 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:05:45,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:45,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:05:45,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:05:45,600 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:05:45,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45 WrapperNode [2023-11-26 12:05:45,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:05:45,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:05:45,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:05:45,603 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:05:45,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,620 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,643 INFO L138 Inliner]: procedures = 19, calls = 64, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2023-11-26 12:05:45,643 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:05:45,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:05:45,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:05:45,644 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:05:45,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,655 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,659 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,677 INFO L175 MemorySlicer]: Split 36 memory accesses to 6 slices as follows [2, 5, 4, 7, 11, 7]. 31 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 10 writes are split as follows [0, 1, 1, 3, 3, 2]. [2023-11-26 12:05:45,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,688 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,693 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:05:45,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:05:45,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:05:45,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:05:45,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (1/1) ... [2023-11-26 12:05:45,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:05:45,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:05:45,728 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:05:45,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:05:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_35_to_37_0 [2023-11-26 12:05:45,777 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_35_to_37_0 [2023-11-26 12:05:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:05:45,777 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:05:45,778 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:05:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:05:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:05:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:05:45,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 12:05:45,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 12:05:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 12:05:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:05:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 12:05:45,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 12:05:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 12:05:45,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 12:05:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 12:05:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 12:05:45,784 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_39_to_46_0 [2023-11-26 12:05:45,785 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_39_to_46_0 [2023-11-26 12:05:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:05:45,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:05:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 12:05:45,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 12:05:45,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 12:05:45,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 12:05:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 12:05:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 12:05:45,789 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-26 12:05:45,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-26 12:05:45,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:05:45,932 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:05:45,936 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:05:46,271 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:05:46,326 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:05:46,327 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-26 12:05:46,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:46 BoogieIcfgContainer [2023-11-26 12:05:46,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:05:46,334 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:05:46,334 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:05:46,338 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:05:46,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:05:45" (1/3) ... [2023-11-26 12:05:46,339 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135d9652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:46, skipping insertion in model container [2023-11-26 12:05:46,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:45" (2/3) ... [2023-11-26 12:05:46,340 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135d9652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:46, skipping insertion in model container [2023-11-26 12:05:46,340 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:46" (3/3) ... [2023-11-26 12:05:46,341 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_divbin.i [2023-11-26 12:05:46,365 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:05:46,366 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2023-11-26 12:05:46,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@135d9652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:05:46, skipping insertion in model container [2023-11-26 12:05:46,369 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:05:46,371 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:05:46,371 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:05:46,372 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:05:46,372 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:46" (3/3) ... [2023-11-26 12:05:46,376 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:05:46,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_35_to_37_0 [2023-11-26 12:05:46,380 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure func_to_recursive_line_39_to_46_0 [2023-11-26 12:05:46,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-26 12:05:46,381 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-26 12:05:46,391 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-26 12:05:46,391 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-26 12:05:46,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 12:05:46,392 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:05:46,535 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:05:46,537 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:05:46,538 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:05:46,540 INFO L158 Benchmark]: Toolchain (without parser) took 1208.33ms. Allocated memory is still 169.9MB. Free memory was 126.7MB in the beginning and 85.5MB in the end (delta: 41.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-26 12:05:46,540 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 169.9MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:05:46,540 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.91ms. Allocated memory is still 169.9MB. Free memory was 126.7MB in the beginning and 115.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-26 12:05:46,541 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.23ms. Allocated memory is still 169.9MB. Free memory was 115.5MB in the beginning and 113.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:05:46,541 INFO L158 Benchmark]: Boogie Preprocessor took 52.98ms. Allocated memory is still 169.9MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:05:46,542 INFO L158 Benchmark]: RCFGBuilder took 629.62ms. Allocated memory is still 169.9MB. Free memory was 111.7MB in the beginning and 93.5MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-26 12:05:46,542 INFO L158 Benchmark]: TraceAbstraction took 35.19ms. Allocated memory is still 169.9MB. Free memory was 93.2MB in the beginning and 90.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:05:46,542 INFO L158 Benchmark]: Witness Printer took 167.02ms. Allocated memory is still 169.9MB. Free memory was 90.9MB in the beginning and 85.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-26 12:05:46,545 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 169.9MB. Free memory is still 144.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.91ms. Allocated memory is still 169.9MB. Free memory was 126.7MB in the beginning and 115.5MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.23ms. Allocated memory is still 169.9MB. Free memory was 115.5MB in the beginning and 113.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.98ms. Allocated memory is still 169.9MB. Free memory was 113.8MB in the beginning and 111.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 629.62ms. Allocated memory is still 169.9MB. Free memory was 111.7MB in the beginning and 93.5MB in the end (delta: 18.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35.19ms. Allocated memory is still 169.9MB. Free memory was 93.2MB in the beginning and 90.9MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 167.02ms. Allocated memory is still 169.9MB. Free memory was 90.9MB in the beginning and 85.5MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2023-11-26 12:05:46,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6e611cd-39ed-4388-a36c-1ce7ebd661ce/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE