./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_18_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_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_18_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB --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 0685996b3ad3b6c1a78d4032ff2ce5213c2e005589d7d20d22ae196ac6b43e5f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 19:51:15,586 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 19:51:15,680 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-27 19:51:15,692 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 19:51:15,692 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 19:51:15,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 19:51:15,741 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 19:51:15,742 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 19:51:15,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 19:51:15,743 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 19:51:15,745 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 19:51:15,745 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 19:51:15,745 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 19:51:15,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 19:51:15,746 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-27 19:51:15,747 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 19:51:15,747 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 19:51:15,747 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 19:51:15,747 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 19:51:15,747 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 19:51:15,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:15,748 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:15,749 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:15,749 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:15,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 19:51:15,749 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 19:51:15,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 19:51:15,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 19:51:15,750 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:15,750 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 19:51:15,750 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 19:51:15,750 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 19:51:15,750 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 19:51:15,751 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 19:51:15,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 19:51:15,751 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 19:51:15,752 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 19:51:15,752 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 19:51:15,752 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 19:51:15,752 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_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 0685996b3ad3b6c1a78d4032ff2ce5213c2e005589d7d20d22ae196ac6b43e5f [2024-11-27 19:51:16,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 19:51:16,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 19:51:16,102 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 19:51:16,103 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 19:51:16,104 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 19:51:16,105 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_18_good.i [2024-11-27 19:51:19,481 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/data/630397259/a7bd2f262cad43499534c5089631e8c6/FLAGa204ceea9 [2024-11-27 19:51:20,001 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 19:51:20,002 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_multiply_18_good.i [2024-11-27 19:51:20,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/data/630397259/a7bd2f262cad43499534c5089631e8c6/FLAGa204ceea9 [2024-11-27 19:51:20,068 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/data/630397259/a7bd2f262cad43499534c5089631e8c6 [2024-11-27 19:51:20,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 19:51:20,073 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 19:51:20,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:20,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 19:51:20,080 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 19:51:20,081 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:20" (1/1) ... [2024-11-27 19:51:20,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15fb6d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:20, skipping insertion in model container [2024-11-27 19:51:20,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 07:51:20" (1/1) ... [2024-11-27 19:51:20,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 19:51:21,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:21,279 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 19:51:21,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 19:51:21,570 INFO L204 MainTranslator]: Completed translation [2024-11-27 19:51:21,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21 WrapperNode [2024-11-27 19:51:21,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 19:51:21,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:21,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 19:51:21,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 19:51:21,580 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,603 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,628 INFO L138 Inliner]: procedures = 500, calls = 32, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 78 [2024-11-27 19:51:21,629 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 19:51:21,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 19:51:21,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 19:51:21,632 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 19:51:21,640 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,643 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,657 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]. [2024-11-27 19:51:21,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,658 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,665 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,674 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,679 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 19:51:21,680 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 19:51:21,680 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 19:51:21,680 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 19:51:21,681 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (1/1) ... [2024-11-27 19:51:21,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 19:51:21,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 19:51:21,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 19:51:21,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 19:51:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-11-27 19:51:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-11-27 19:51:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-27 19:51:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-27 19:51:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 19:51:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 19:51:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 19:51:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 19:51:21,910 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 19:51:21,911 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 19:51:22,075 INFO L? ?]: Removed 25 outVars from TransFormulas that were not future-live. [2024-11-27 19:51:22,075 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 19:51:22,088 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 19:51:22,088 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 19:51:22,089 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:22 BoogieIcfgContainer [2024-11-27 19:51:22,089 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 19:51:22,091 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 19:51:22,091 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 19:51:22,098 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 19:51:22,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 07:51:20" (1/3) ... [2024-11-27 19:51:22,099 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36015694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:22, skipping insertion in model container [2024-11-27 19:51:22,100 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 07:51:21" (2/3) ... [2024-11-27 19:51:22,102 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36015694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 07:51:22, skipping insertion in model container [2024-11-27 19:51:22,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:22" (3/3) ... [2024-11-27 19:51:22,104 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_multiply_18_good.i [2024-11-27 19:51:22,121 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 19:51:22,123 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE190_Integer_Overflow__int_fgets_multiply_18_good.i that has 3 procedures, 40 locations, 1 initial locations, 0 loop locations, and 4 error locations. [2024-11-27 19:51:22,208 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 19:51:22,229 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;@4eb2e48f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 19:51:22,229 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-27 19:51:22,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 33 states have internal predecessors, (36), 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) [2024-11-27 19:51:22,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-27 19:51:22,243 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:22,244 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:22,245 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)] === [2024-11-27 19:51:22,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1059805070, now seen corresponding path program 1 times [2024-11-27 19:51:22,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:22,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423952290] [2024-11-27 19:51:22,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:22,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:22,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:51:22,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:22,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423952290] [2024-11-27 19:51:22,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423952290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:22,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:22,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:51:22,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987209421] [2024-11-27 19:51:22,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:22,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:22,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:22,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:22,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:22,706 INFO L87 Difference]: Start difference. First operand has 40 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 33 states have internal predecessors, (36), 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 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) [2024-11-27 19:51:22,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:22,756 INFO L93 Difference]: Finished difference Result 40 states and 48 transitions. [2024-11-27 19:51:22,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:22,759 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 [2024-11-27 19:51:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:22,766 INFO L225 Difference]: With dead ends: 40 [2024-11-27 19:51:22,768 INFO L226 Difference]: Without dead ends: 30 [2024-11-27 19:51:22,771 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 [2024-11-27 19:51:22,776 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 1 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:22,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 79 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:22,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-27 19:51:22,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-27 19:51:22,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 25 states have internal predecessors, (27), 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) [2024-11-27 19:51:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2024-11-27 19:51:22,870 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 14 [2024-11-27 19:51:22,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:22,871 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2024-11-27 19:51:22,871 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) [2024-11-27 19:51:22,871 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2024-11-27 19:51:22,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-27 19:51:22,873 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:22,873 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:22,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 19:51:22,873 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 19:51:22,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1505781263, now seen corresponding path program 1 times [2024-11-27 19:51:22,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:22,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030774785] [2024-11-27 19:51:22,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:22,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:51:23,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:23,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030774785] [2024-11-27 19:51:23,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030774785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:23,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:23,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:51:23,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306405908] [2024-11-27 19:51:23,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:23,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:23,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:23,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:23,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:23,054 INFO L87 Difference]: Start difference. First operand 30 states and 35 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, (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) [2024-11-27 19:51:23,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:23,106 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-11-27 19:51:23,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:23,107 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, (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 15 [2024-11-27 19:51:23,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:23,110 INFO L225 Difference]: With dead ends: 45 [2024-11-27 19:51:23,110 INFO L226 Difference]: Without dead ends: 32 [2024-11-27 19:51:23,111 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 [2024-11-27 19:51:23,112 INFO L435 NwaCegarLoop]: 33 mSDtfsCounter, 4 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:23,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 55 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:23,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-27 19:51:23,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-27 19:51:23,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 24 states have (on average 1.25) internal successors, (30), 26 states have internal predecessors, (30), 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) [2024-11-27 19:51:23,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-27 19:51:23,128 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 15 [2024-11-27 19:51:23,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:23,129 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-27 19:51:23,129 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, (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) [2024-11-27 19:51:23,129 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-27 19:51:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-27 19:51:23,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 19:51:23,131 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 19:51:23,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 19:51:23,131 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2024-11-27 19:51:23,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 19:51:23,132 INFO L85 PathProgramCache]: Analyzing trace with hash -551137181, now seen corresponding path program 1 times [2024-11-27 19:51:23,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 19:51:23,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760310175] [2024-11-27 19:51:23,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 19:51:23,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 19:51:23,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 19:51:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 19:51:23,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 19:51:23,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760310175] [2024-11-27 19:51:23,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760310175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 19:51:23,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 19:51:23,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 19:51:23,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533159684] [2024-11-27 19:51:23,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 19:51:23,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 19:51:23,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 19:51:23,290 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 19:51:23,290 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 19:51:23,291 INFO L87 Difference]: Start difference. First operand 32 states and 38 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, (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) [2024-11-27 19:51:23,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 19:51:23,304 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2024-11-27 19:51:23,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 19:51:23,306 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, (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 16 [2024-11-27 19:51:23,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 19:51:23,306 INFO L225 Difference]: With dead ends: 32 [2024-11-27 19:51:23,306 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 19:51:23,307 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 [2024-11-27 19:51:23,307 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 1 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 19:51:23,308 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 59 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 19:51:23,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 19:51:23,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 19:51:23,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 19:51:23,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 19:51:23,309 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-11-27 19:51:23,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 19:51:23,311 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 19:51:23,311 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, (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) [2024-11-27 19:51:23,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 19:51:23,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 19:51:23,314 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2024-11-27 19:51:23,315 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2024-11-27 19:51:23,315 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2024-11-27 19:51:23,315 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2024-11-27 19:51:23,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 19:51:23,319 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-27 19:51:23,322 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 19:51:23,348 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 19:51:23,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 07:51:23 BoogieIcfgContainer [2024-11-27 19:51:23,356 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 19:51:23,357 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 19:51:23,357 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 19:51:23,357 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 19:51:23,358 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 07:51:22" (3/4) ... [2024-11-27 19:51:23,361 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 19:51:23,366 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-11-27 19:51:23,366 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-11-27 19:51:23,372 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-27 19:51:23,372 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-27 19:51:23,372 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 19:51:23,372 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 19:51:23,453 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 19:51:23,453 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 19:51:23,453 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 19:51:23,455 INFO L158 Benchmark]: Toolchain (without parser) took 3381.91ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 59.3MB in the end (delta: 30.1MB). Peak memory consumption was 33.2MB. Max. memory is 16.1GB. [2024-11-27 19:51:23,455 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:23,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1496.74ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 80.0MB in the end (delta: 9.1MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2024-11-27 19:51:23,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.18ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:23,456 INFO L158 Benchmark]: Boogie Preprocessor took 48.46ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 75.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:23,457 INFO L158 Benchmark]: RCFGBuilder took 409.11ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 62.7MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 19:51:23,457 INFO L158 Benchmark]: TraceAbstraction took 1265.01ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 64.5MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 19:51:23,457 INFO L158 Benchmark]: Witness Printer took 96.87ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 59.3MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 19:51:23,459 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1496.74ms. Allocated memory is still 117.4MB. Free memory was 89.1MB in the beginning and 80.0MB in the end (delta: 9.1MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.18ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 77.3MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 48.46ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 75.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 409.11ms. Allocated memory is still 117.4MB. Free memory was 75.7MB in the beginning and 62.7MB in the end (delta: 13.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1265.01ms. Allocated memory is still 117.4MB. Free memory was 62.2MB in the beginning and 64.5MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 96.87ms. Allocated memory is still 117.4MB. Free memory was 63.9MB in the beginning and 59.3MB in the end (delta: 4.6MB). 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: 1591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1591]: 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, 40 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 193 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 105 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 19:51:23,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98efea41-8dc1-49d2-bf29-7fb5662d19c7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE