./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/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_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/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 64bit --witnessprinter.graph.data.programhash 4eb4310bc931b8f9c8584b21e1767e1159c3de225c38522d1a6a8509396cd59b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:18,835 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:18,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 12:00:18,967 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:18,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:19,004 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:19,006 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:19,007 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:19,008 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:19,013 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:19,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:19,015 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:19,016 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:19,018 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:19,019 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:19,019 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:19,020 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:19,020 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:19,022 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:19,023 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:19,023 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:19,024 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:19,024 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:00:19,025 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:19,025 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:19,026 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:19,027 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:19,027 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:19,028 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:19,028 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:19,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:19,030 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:19,031 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:19,031 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:19,031 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:19,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:19,032 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:19,032 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:19,033 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:19,033 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:19,033 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:19,034 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_292bc916-2cd2-4278-b705-4ef3a055185b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4eb4310bc931b8f9c8584b21e1767e1159c3de225c38522d1a6a8509396cd59b [2023-11-26 12:00:19,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:19,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:19,349 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:19,350 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:19,351 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:19,352 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_good.i [2023-11-26 12:00:22,497 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:22,939 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:22,940 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_41_good.i [2023-11-26 12:00:22,976 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/data/06573a1ce/d1e3d2e7c1e442d4bfe8ec7d5248a611/FLAG6453efc7f [2023-11-26 12:00:22,996 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/data/06573a1ce/d1e3d2e7c1e442d4bfe8ec7d5248a611 [2023-11-26 12:00:22,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:23,001 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:23,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:23,007 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:23,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:23,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:22" (1/1) ... [2023-11-26 12:00:23,016 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@305114f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:23, skipping insertion in model container [2023-11-26 12:00:23,017 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:22" (1/1) ... [2023-11-26 12:00:23,104 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:24,231 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:24,253 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:24,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:24,559 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:24,559 WARN L675 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:24,560 WARN L675 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:24,560 WARN L675 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:24,560 WARN L675 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:24,568 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:24,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24 WrapperNode [2023-11-26 12:00:24,570 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:24,571 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:24,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:24,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:24,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,666 INFO L138 Inliner]: procedures = 503, calls = 70, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 74 [2023-11-26 12:00:24,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:24,667 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:24,667 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:24,667 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:24,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,719 INFO L175 MemorySlicer]: Split 4 memory accesses to 3 slices as follows [1, 2, 1]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [1, 0, 1]. The 2 writes are split as follows [0, 2, 0]. [2023-11-26 12:00:24,720 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,720 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,727 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,730 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:24,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:24,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:24,746 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:24,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (1/1) ... [2023-11-26 12:00:24,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:24,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:24,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:24,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:24,821 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-26 12:00:24,822 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-26 12:00:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-26 12:00:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-26 12:00:24,822 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-26 12:00:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:24,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 12:00:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 12:00:24,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 12:00:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:24,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:24,825 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-26 12:00:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 12:00:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 12:00:24,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 12:00:25,069 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:25,074 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:25,310 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:25,352 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:25,352 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 12:00:25,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:25 BoogieIcfgContainer [2023-11-26 12:00:25,353 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:25,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:25,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:25,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:25,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:22" (1/3) ... [2023-11-26 12:00:25,367 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d34b62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:25, skipping insertion in model container [2023-11-26 12:00:25,367 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:24" (2/3) ... [2023-11-26 12:00:25,369 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d34b62d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:25, skipping insertion in model container [2023-11-26 12:00:25,369 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:25" (3/3) ... [2023-11-26 12:00:25,372 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_41_good.i [2023-11-26 12:00:25,391 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:25,391 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-26 12:00:25,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:25,453 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@3380d1ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:25,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-26 12:00:25,458 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 19 states have (on average 1.368421052631579) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-26 12:00:25,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-26 12:00:25,466 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:25,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:25,472 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 12:00:25,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:25,479 INFO L85 PathProgramCache]: Analyzing trace with hash 2044420397, now seen corresponding path program 1 times [2023-11-26 12:00:25,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:25,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403096830] [2023-11-26 12:00:25,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:25,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:00:25,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:25,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:25,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:25,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403096830] [2023-11-26 12:00:25,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403096830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:25,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:25,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-26 12:00:25,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916566321] [2023-11-26 12:00:25,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:25,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:25,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:26,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:26,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 12:00:26,006 INFO L87 Difference]: Start difference. First operand has 32 states, 19 states have (on average 1.368421052631579) internal successors, (26), 23 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:00:26,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:26,117 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2023-11-26 12:00:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:26,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-26 12:00:26,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:26,143 INFO L225 Difference]: With dead ends: 32 [2023-11-26 12:00:26,143 INFO L226 Difference]: Without dead ends: 26 [2023-11-26 12:00:26,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:26,150 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:26,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 65 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:26,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-26 12:00:26,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2023-11-26 12:00:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:00:26,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2023-11-26 12:00:26,197 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 11 [2023-11-26 12:00:26,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:26,201 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2023-11-26 12:00:26,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:00:26,205 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-26 12:00:26,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 12:00:26,206 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:26,206 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:26,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:26,207 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 12:00:26,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:26,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1047477073, now seen corresponding path program 1 times [2023-11-26 12:00:26,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:26,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500386026] [2023-11-26 12:00:26,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:26,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:26,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:00:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:26,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:26,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:26,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500386026] [2023-11-26 12:00:26,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500386026] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:26,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:26,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:26,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115713325] [2023-11-26 12:00:26,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:26,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:26,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:26,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:26,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:26,315 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:00:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:26,333 INFO L93 Difference]: Finished difference Result 27 states and 31 transitions. [2023-11-26 12:00:26,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:26,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-26 12:00:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:26,335 INFO L225 Difference]: With dead ends: 27 [2023-11-26 12:00:26,335 INFO L226 Difference]: Without dead ends: 26 [2023-11-26 12:00:26,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:26,337 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:26,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 43 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:26,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-26 12:00:26,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2023-11-26 12:00:26,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 18 states have internal predecessors, (21), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-26 12:00:26,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2023-11-26 12:00:26,355 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 12 [2023-11-26 12:00:26,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:26,356 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2023-11-26 12:00:26,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:00:26,356 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2023-11-26 12:00:26,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-26 12:00:26,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:26,358 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:26,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 12:00:26,359 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-26 12:00:26,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:26,360 INFO L85 PathProgramCache]: Analyzing trace with hash 162046237, now seen corresponding path program 1 times [2023-11-26 12:00:26,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:26,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139223274] [2023-11-26 12:00:26,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:26,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:26,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:26,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 12:00:26,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:26,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-26 12:00:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:26,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 12:00:26,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:26,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139223274] [2023-11-26 12:00:26,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139223274] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:26,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:26,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:26,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435512442] [2023-11-26 12:00:26,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:26,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:26,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:26,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:26,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:26,568 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:00:26,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:26,587 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2023-11-26 12:00:26,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:26,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-26 12:00:26,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:26,590 INFO L225 Difference]: With dead ends: 25 [2023-11-26 12:00:26,590 INFO L226 Difference]: Without dead ends: 0 [2023-11-26 12:00:26,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:26,595 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:26,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 46 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:26,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-26 12:00:26,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-26 12:00:26,598 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) [2023-11-26 12:00:26,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-26 12:00:26,599 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-11-26 12:00:26,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:26,599 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-26 12:00:26,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 12:00:26,599 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-26 12:00:26,600 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-26 12:00:26,602 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-26 12:00:26,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-26 12:00:26,603 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-26 12:00:26,604 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-26 12:00:26,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:26,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-26 12:00:26,640 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-26 12:00:26,640 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-26 12:00:26,640 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2023-11-26 12:00:26,640 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2023-11-26 12:00:26,641 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-26 12:00:26,641 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-26 12:00:26,641 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1566) no Hoare annotation was computed. [2023-11-26 12:00:26,641 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-26 12:00:26,641 INFO L895 garLoopResultBuilder]: At program point L1567(line 1567) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodB2GSink_~data#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~1#1| 2147483648)) (<= |ULTIMATE.start_goodB2GSink_~data#1| 2147483646)) [2023-11-26 12:00:26,642 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1551) no Hoare annotation was computed. [2023-11-26 12:00:26,642 INFO L899 garLoopResultBuilder]: For program point L1567-1(line 1567) no Hoare annotation was computed. [2023-11-26 12:00:26,642 INFO L895 garLoopResultBuilder]: At program point L1586(line 1586) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G_~data~1#1| 2147483648)) [2023-11-26 12:00:26,642 INFO L899 garLoopResultBuilder]: For program point L1586-1(line 1586) no Hoare annotation was computed. [2023-11-26 12:00:26,642 INFO L899 garLoopResultBuilder]: For program point L1551(line 1551) no Hoare annotation was computed. [2023-11-26 12:00:26,642 INFO L899 garLoopResultBuilder]: For program point L1551-1(line 1551) no Hoare annotation was computed. [2023-11-26 12:00:26,643 INFO L899 garLoopResultBuilder]: For program point L1580(lines 1580 1587) no Hoare annotation was computed. [2023-11-26 12:00:26,643 INFO L899 garLoopResultBuilder]: For program point L1580-2(lines 1580 1587) no Hoare annotation was computed. [2023-11-26 12:00:26,645 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-26 12:00:26,645 INFO L902 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: true [2023-11-26 12:00:26,646 INFO L899 garLoopResultBuilder]: For program point L1601-1(line 1601) no Hoare annotation was computed. [2023-11-26 12:00:26,646 INFO L902 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: true [2023-11-26 12:00:26,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1566) no Hoare annotation was computed. [2023-11-26 12:00:26,649 INFO L899 garLoopResultBuilder]: For program point L1599-1(line 1599) no Hoare annotation was computed. [2023-11-26 12:00:26,650 INFO L899 garLoopResultBuilder]: For program point L1566(line 1566) no Hoare annotation was computed. [2023-11-26 12:00:26,650 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1551) no Hoare annotation was computed. [2023-11-26 12:00:26,650 INFO L899 garLoopResultBuilder]: For program point L1566-1(line 1566) no Hoare annotation was computed. [2023-11-26 12:00:26,652 INFO L899 garLoopResultBuilder]: For program point L1564(lines 1564 1572) no Hoare annotation was computed. [2023-11-26 12:00:26,652 INFO L899 garLoopResultBuilder]: For program point L1562(lines 1562 1573) no Hoare annotation was computed. [2023-11-26 12:00:26,652 INFO L902 garLoopResultBuilder]: At program point L1552(line 1552) the Hoare annotation is: true [2023-11-26 12:00:26,656 INFO L899 garLoopResultBuilder]: For program point L1552-1(line 1552) no Hoare annotation was computed. [2023-11-26 12:00:26,656 INFO L895 garLoopResultBuilder]: At program point L1571(line 1571) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodB2GSink_~data#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_goodB2G_~data~1#1| 2147483648))) [2023-11-26 12:00:26,656 INFO L899 garLoopResultBuilder]: For program point L1571-1(line 1571) no Hoare annotation was computed. [2023-11-26 12:00:26,660 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-26 12:00:26,664 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 12:00:26,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:00:26 BoogieIcfgContainer [2023-11-26 12:00:26,671 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 12:00:26,673 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 12:00:26,673 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 12:00:26,674 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 12:00:26,675 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:25" (3/4) ... [2023-11-26 12:00:26,677 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-26 12:00:26,681 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-26 12:00:26,681 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-26 12:00:26,689 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-26 12:00:26,690 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-26 12:00:26,690 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-26 12:00:26,690 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-26 12:00:26,794 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/witness.graphml [2023-11-26 12:00:26,794 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/witness.yml [2023-11-26 12:00:26,795 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 12:00:26,795 INFO L158 Benchmark]: Toolchain (without parser) took 3794.70ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 80.9MB in the end (delta: 59.0MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:26,796 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 12:00:26,796 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1564.91ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 76.1MB in the end (delta: 63.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-26 12:00:26,797 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.25ms. Allocated memory is still 184.5MB. Free memory was 76.1MB in the beginning and 72.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:26,797 INFO L158 Benchmark]: Boogie Preprocessor took 78.12ms. Allocated memory is still 184.5MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 12:00:26,797 INFO L158 Benchmark]: RCFGBuilder took 606.76ms. Allocated memory is still 184.5MB. Free memory was 70.7MB in the beginning and 149.0MB in the end (delta: -78.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2023-11-26 12:00:26,798 INFO L158 Benchmark]: TraceAbstraction took 1315.72ms. Allocated memory is still 184.5MB. Free memory was 148.0MB in the beginning and 86.1MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-26 12:00:26,798 INFO L158 Benchmark]: Witness Printer took 122.21ms. Allocated memory is still 184.5MB. Free memory was 86.1MB in the beginning and 80.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 12:00:26,801 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 138.4MB. Free memory is still 82.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1564.91ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 76.1MB in the end (delta: 63.8MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 95.25ms. Allocated memory is still 184.5MB. Free memory was 76.1MB in the beginning and 72.8MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.12ms. Allocated memory is still 184.5MB. Free memory was 72.8MB in the beginning and 70.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 606.76ms. Allocated memory is still 184.5MB. Free memory was 70.7MB in the beginning and 149.0MB in the end (delta: -78.3MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1315.72ms. Allocated memory is still 184.5MB. Free memory was 148.0MB in the beginning and 86.1MB in the end (delta: 61.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Witness Printer took 122.21ms. Allocated memory is still 184.5MB. Free memory was 86.1MB in the beginning and 80.9MB in the end (delta: 5.2MB). 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: 1566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1566]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1551]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 154 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 81 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 73 mSDtfsCounter, 37 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 10, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 35 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-26 12:00:26,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_292bc916-2cd2-4278-b705-4ef3a055185b/bin/uautomizer-verify-VRDe98Ueme/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