./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1 --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 26d16aaf5f56fbf441718250791516b1764c399a60d53fc01b5628842ed1d1d5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:28:37,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:28:37,917 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-12-02 15:28:37,922 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:28:37,923 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:28:37,945 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:28:37,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:28:37,946 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:28:37,946 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:28:37,946 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:28:37,947 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:28:37,947 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:28:37,947 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:28:37,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:28:37,947 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:28:37,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:28:37,948 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:28:37,948 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:28:37,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:28:37,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:28:37,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:28:37,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:28:37,949 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:28:37,949 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:28:37,949 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:28:37,949 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:28:37,949 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:28:37,949 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:28:37,950 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1 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 -> 26d16aaf5f56fbf441718250791516b1764c399a60d53fc01b5628842ed1d1d5 [2024-12-02 15:28:38,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:28:38,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:28:38,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:28:38,220 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:28:38,220 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:28:38,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i [2024-12-02 15:28:40,962 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/data/8b0ab36bd/42c44847df7a4b2fbfbe00147043eedc/FLAG8666245ca [2024-12-02 15:28:41,321 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:28:41,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_16_good.i [2024-12-02 15:28:41,350 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/data/8b0ab36bd/42c44847df7a4b2fbfbe00147043eedc/FLAG8666245ca [2024-12-02 15:28:41,370 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/data/8b0ab36bd/42c44847df7a4b2fbfbe00147043eedc [2024-12-02 15:28:41,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:28:41,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:28:41,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:28:41,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:28:41,382 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:28:41,383 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:28:41" (1/1) ... [2024-12-02 15:28:41,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45943a6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:41, skipping insertion in model container [2024-12-02 15:28:41,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:28:41" (1/1) ... [2024-12-02 15:28:41,429 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:28:42,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:28:42,283 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:28:42,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:28:42,468 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:28:42,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42 WrapperNode [2024-12-02 15:28:42,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:28:42,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:28:42,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:28:42,470 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:28:42,475 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,490 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,506 INFO L138 Inliner]: procedures = 500, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 84 [2024-12-02 15:28:42,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:28:42,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:28:42,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:28:42,507 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:28:42,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,517 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,527 INFO L175 MemorySlicer]: Split 1 memory accesses to 1 slices as follows [1]. 100 percent of accesses are in the largest equivalence class. The 1 initializations are split as follows [1]. The 0 writes are split as follows [0]. [2024-12-02 15:28:42,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,531 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,532 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,534 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,535 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,536 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,537 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:28:42,538 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:28:42,538 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:28:42,538 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:28:42,538 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (1/1) ... [2024-12-02 15:28:42,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:28:42,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:28:42,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:28:42,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:28:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-12-02 15:28:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-12-02 15:28:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-12-02 15:28:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-12-02 15:28:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:28:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:28:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:28:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:28:42,706 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:28:42,708 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:28:42,818 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2024-12-02 15:28:42,819 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:28:42,829 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:28:42,829 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-12-02 15:28:42,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:42 BoogieIcfgContainer [2024-12-02 15:28:42,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:28:42,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:28:42,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:28:42,837 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:28:42,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:28:41" (1/3) ... [2024-12-02 15:28:42,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79196944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:28:42, skipping insertion in model container [2024-12-02 15:28:42,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:28:42" (2/3) ... [2024-12-02 15:28:42,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79196944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:28:42, skipping insertion in model container [2024-12-02 15:28:42,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:42" (3/3) ... [2024-12-02 15:28:42,840 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_16_good.i [2024-12-02 15:28:42,855 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:28:42,856 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fgets_sub_16_good.i that has 3 procedures, 38 locations, 1 initial locations, 4 loop locations, and 4 error locations. [2024-12-02 15:28:42,910 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:28:42,923 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ad491f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:28:42,923 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-12-02 15:28:42,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.6) internal successors, (40), 31 states have internal predecessors, (40), 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) [2024-12-02 15:28:42,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 15:28:42,934 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:42,934 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:42,934 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 15:28:42,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:42,939 INFO L85 PathProgramCache]: Analyzing trace with hash 23817420, now seen corresponding path program 1 times [2024-12-02 15:28:42,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:42,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651216952] [2024-12-02 15:28:42,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:42,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:28:43,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:43,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651216952] [2024-12-02 15:28:43,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651216952] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:43,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:43,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:28:43,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590044009] [2024-12-02 15:28:43,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:43,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 15:28:43,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:43,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 15:28:43,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:28:43,100 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.6) internal successors, (40), 31 states have internal predecessors, (40), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-12-02 15:28:43,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:43,112 INFO L93 Difference]: Finished difference Result 68 states and 91 transitions. [2024-12-02 15:28:43,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 15:28:43,114 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 [2024-12-02 15:28:43,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:43,119 INFO L225 Difference]: With dead ends: 68 [2024-12-02 15:28:43,119 INFO L226 Difference]: Without dead ends: 29 [2024-12-02 15:28:43,121 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 15:28:43,123 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:43,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:28:43,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-12-02 15:28:43,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-12-02 15:28:43,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 24 states have internal predecessors, (25), 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) [2024-12-02 15:28:43,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-12-02 15:28:43,151 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 11 [2024-12-02 15:28:43,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:43,153 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-12-02 15:28:43,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 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) [2024-12-02 15:28:43,153 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-12-02 15:28:43,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 15:28:43,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:43,154 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:43,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:28:43,154 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 15:28:43,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:43,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1403920647, now seen corresponding path program 1 times [2024-12-02 15:28:43,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:43,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524137575] [2024-12-02 15:28:43,156 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:43,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:43,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:28:43,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:43,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524137575] [2024-12-02 15:28:43,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524137575] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:43,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:43,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:28:43,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160366745] [2024-12-02 15:28:43,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:43,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:43,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:43,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:43,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:43,268 INFO L87 Difference]: Start difference. First operand 29 states and 33 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, (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) [2024-12-02 15:28:43,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:43,298 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2024-12-02 15:28:43,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:43,299 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, (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 13 [2024-12-02 15:28:43,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:43,300 INFO L225 Difference]: With dead ends: 42 [2024-12-02 15:28:43,300 INFO L226 Difference]: Without dead ends: 30 [2024-12-02 15:28:43,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:43,301 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:43,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 51 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:28:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-12-02 15:28:43,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-12-02 15:28:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 24 states have internal predecessors, (26), 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) [2024-12-02 15:28:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-12-02 15:28:43,307 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 13 [2024-12-02 15:28:43,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:43,308 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-12-02 15:28:43,308 INFO L472 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, (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) [2024-12-02 15:28:43,308 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-12-02 15:28:43,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-02 15:28:43,309 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:43,309 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:43,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:28:43,309 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 15:28:43,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:43,310 INFO L85 PathProgramCache]: Analyzing trace with hash 571867175, now seen corresponding path program 1 times [2024-12-02 15:28:43,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:43,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328312582] [2024-12-02 15:28:43,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:43,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:43,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:43,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:28:43,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:43,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328312582] [2024-12-02 15:28:43,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328312582] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:43,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:43,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:28:43,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160099972] [2024-12-02 15:28:43,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:43,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:43,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:43,397 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:43,397 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:43,398 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-02 15:28:43,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:43,415 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-12-02 15:28:43,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:43,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 14 [2024-12-02 15:28:43,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:43,416 INFO L225 Difference]: With dead ends: 30 [2024-12-02 15:28:43,416 INFO L226 Difference]: Without dead ends: 29 [2024-12-02 15:28:43,416 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:43,417 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:43,417 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 47 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:28:43,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-12-02 15:28:43,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-12-02 15:28:43,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 23 states have internal predecessors, (25), 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) [2024-12-02 15:28:43,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-12-02 15:28:43,423 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 14 [2024-12-02 15:28:43,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:43,423 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-12-02 15:28:43,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-12-02 15:28:43,424 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-12-02 15:28:43,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 15:28:43,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:43,424 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:43,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:28:43,424 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 15:28:43,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:43,425 INFO L85 PathProgramCache]: Analyzing trace with hash 194555980, now seen corresponding path program 1 times [2024-12-02 15:28:43,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:43,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094810313] [2024-12-02 15:28:43,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:43,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:43,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:28:43,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:43,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094810313] [2024-12-02 15:28:43,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094810313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:43,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:43,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:28:43,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417928713] [2024-12-02 15:28:43,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:43,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:43,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:43,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:43,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:43,502 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-12-02 15:28:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:43,512 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2024-12-02 15:28:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:43,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 20 [2024-12-02 15:28:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:43,514 INFO L225 Difference]: With dead ends: 29 [2024-12-02 15:28:43,514 INFO L226 Difference]: Without dead ends: 28 [2024-12-02 15:28:43,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:43,515 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:43,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 54 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:28:43,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-12-02 15:28:43,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-12-02 15:28:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 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) [2024-12-02 15:28:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2024-12-02 15:28:43,521 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 20 [2024-12-02 15:28:43,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:43,521 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2024-12-02 15:28:43,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2024-12-02 15:28:43,522 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2024-12-02 15:28:43,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-12-02 15:28:43,522 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:28:43,522 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:28:43,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:28:43,523 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-12-02 15:28:43,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:28:43,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1736268195, now seen corresponding path program 1 times [2024-12-02 15:28:43,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:28:43,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423365147] [2024-12-02 15:28:43,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:28:43,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:28:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:28:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:28:43,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:28:43,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423365147] [2024-12-02 15:28:43,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423365147] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:28:43,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:28:43,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:28:43,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455180970] [2024-12-02 15:28:43,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:28:43,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:28:43,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:28:43,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:28:43,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:43,585 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-02 15:28:43,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:28:43,591 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2024-12-02 15:28:43,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:28:43,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 21 [2024-12-02 15:28:43,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:28:43,592 INFO L225 Difference]: With dead ends: 28 [2024-12-02 15:28:43,592 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 15:28:43,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:28:43,593 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:28:43,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:28:43,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 15:28:43,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 15:28:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:28:43,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 15:28:43,594 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2024-12-02 15:28:43,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:28:43,595 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:28:43,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-12-02 15:28:43,595 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 15:28:43,595 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 15:28:43,597 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-12-02 15:28:43,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-12-02 15:28:43,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-12-02 15:28:43,598 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-12-02 15:28:43,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 15:28:43,600 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-12-02 15:28:43,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 15:28:43,638 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:28:43,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:28:43 BoogieIcfgContainer [2024-12-02 15:28:43,652 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:28:43,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:28:43,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:28:43,652 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:28:43,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:28:42" (3/4) ... [2024-12-02 15:28:43,655 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 15:28:43,659 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-12-02 15:28:43,660 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-12-02 15:28:43,663 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-02 15:28:43,663 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-02 15:28:43,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 15:28:43,664 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 15:28:43,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 15:28:43,745 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 15:28:43,745 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:28:43,746 INFO L158 Benchmark]: Toolchain (without parser) took 2372.06ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 88.1MB in the end (delta: 28.1MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2024-12-02 15:28:43,746 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:28:43,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1093.01ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 107.0MB in the end (delta: 9.2MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2024-12-02 15:28:43,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.83ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 104.7MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:28:43,747 INFO L158 Benchmark]: Boogie Preprocessor took 29.89ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 102.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:28:43,748 INFO L158 Benchmark]: RCFGBuilder took 292.08ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 89.5MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:28:43,748 INFO L158 Benchmark]: TraceAbstraction took 818.98ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 93.7MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:28:43,748 INFO L158 Benchmark]: Witness Printer took 93.20ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 88.1MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:28:43,750 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1093.01ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 107.0MB in the end (delta: 9.2MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.83ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 104.7MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.89ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 102.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 292.08ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 89.5MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 818.98ms. Allocated memory is still 142.6MB. Free memory was 88.9MB in the beginning and 93.7MB in the end (delta: -4.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 93.20ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 88.1MB in the end (delta: 5.6MB). Peak memory consumption was 8.4MB. 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: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1571]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1593]: 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, 38 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 250 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 93 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 21 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 157 mSDtfsCounter, 21 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 98 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 8/8 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1569]: Loop Invariant Derived loop invariant: (data < 2147483648) - InvariantResult [Line: 1552]: Loop Invariant Derived loop invariant: ((0 <= ((long) 2147483647 + data)) && (data <= 2147483647)) - InvariantResult [Line: 1585]: Loop Invariant Derived loop invariant: (0 <= ((long) data + 2)) - InvariantResult [Line: 1590]: Loop Invariant Derived loop invariant: (((long) data + 2) == 0) RESULT: Ultimate proved your program to be correct! [2024-12-02 15:28:43,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89d7f022-26a9-4fc0-8127-c1aa85de202b/bin/uautomizer-verify-84ZbGMXZE1/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