./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC --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 7868aeaa5817427d0a3828dfefb1034afcc09d6e3c75f7f026172c6fd79cbf43 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 18:41:13,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 18:41:13,231 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-64bit-Automizer_Default.epf [2024-11-23 18:41:13,241 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 18:41:13,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 18:41:13,282 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 18:41:13,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 18:41:13,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 18:41:13,284 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 18:41:13,284 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 18:41:13,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 18:41:13,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 18:41:13,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 18:41:13,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 18:41:13,286 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 18:41:13,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 18:41:13,286 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 18:41:13,286 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 18:41:13,286 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 18:41:13,286 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 18:41:13,286 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 18:41:13,286 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 18:41:13,287 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:41:13,287 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:41:13,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:41:13,288 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 18:41:13,288 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 18:41:13,289 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 18:41:13,289 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 18:41:13,289 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_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC 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 -> 7868aeaa5817427d0a3828dfefb1034afcc09d6e3c75f7f026172c6fd79cbf43 [2024-11-23 18:41:13,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 18:41:13,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 18:41:13,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 18:41:13,639 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 18:41:13,639 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 18:41:13,640 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_good.i [2024-11-23 18:41:16,721 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/data/ad44617ba/84a751e2eadd4db18487cc6285ffc077/FLAGfb1bf7532 [2024-11-23 18:41:17,214 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 18:41:17,215 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_17_good.i [2024-11-23 18:41:17,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/data/ad44617ba/84a751e2eadd4db18487cc6285ffc077/FLAGfb1bf7532 [2024-11-23 18:41:17,274 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/data/ad44617ba/84a751e2eadd4db18487cc6285ffc077 [2024-11-23 18:41:17,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 18:41:17,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 18:41:17,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 18:41:17,279 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 18:41:17,284 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 18:41:17,285 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:41:17" (1/1) ... [2024-11-23 18:41:17,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51570efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:17, skipping insertion in model container [2024-11-23 18:41:17,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:41:17" (1/1) ... [2024-11-23 18:41:17,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 18:41:18,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:41:18,212 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 18:41:18,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 18:41:18,458 INFO L204 MainTranslator]: Completed translation [2024-11-23 18:41:18,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18 WrapperNode [2024-11-23 18:41:18,459 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 18:41:18,460 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 18:41:18,460 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 18:41:18,460 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 18:41:18,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,505 INFO L138 Inliner]: procedures = 499, calls = 28, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 88 [2024-11-23 18:41:18,505 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 18:41:18,506 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 18:41:18,506 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 18:41:18,506 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 18:41:18,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,518 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,527 INFO L175 MemorySlicer]: No memory access in input program. [2024-11-23 18:41:18,527 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,527 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,532 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,536 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,537 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,538 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 18:41:18,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 18:41:18,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 18:41:18,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 18:41:18,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (1/1) ... [2024-11-23 18:41:18,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 18:41:18,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:41:18,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 18:41:18,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 18:41:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2024-11-23 18:41:18,618 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2024-11-23 18:41:18,618 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2024-11-23 18:41:18,618 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2024-11-23 18:41:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 18:41:18,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 18:41:18,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 18:41:18,756 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 18:41:18,758 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 18:41:18,982 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-23 18:41:18,982 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 18:41:18,995 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 18:41:18,995 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 18:41:18,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:41:18 BoogieIcfgContainer [2024-11-23 18:41:18,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 18:41:18,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 18:41:19,000 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 18:41:19,005 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 18:41:19,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:41:17" (1/3) ... [2024-11-23 18:41:19,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694b149d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:41:19, skipping insertion in model container [2024-11-23 18:41:19,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:41:18" (2/3) ... [2024-11-23 18:41:19,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@694b149d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:41:19, skipping insertion in model container [2024-11-23 18:41:19,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:41:18" (3/3) ... [2024-11-23 18:41:19,010 INFO L128 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_17_good.i [2024-11-23 18:41:19,028 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 18:41:19,029 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG CWE191_Integer_Underflow__int_fscanf_sub_17_good.i that has 3 procedures, 58 locations, 1 initial locations, 4 loop locations, and 12 error locations. [2024-11-23 18:41:19,101 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 18:41:19,116 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;@4cb03f50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 18:41:19,116 INFO L334 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2024-11-23 18:41:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 38 states have (on average 1.5789473684210527) internal successors, (60), 51 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-23 18:41:19,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-23 18:41:19,128 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:19,129 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:19,129 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:19,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:19,137 INFO L85 PathProgramCache]: Analyzing trace with hash -622450655, now seen corresponding path program 1 times [2024-11-23 18:41:19,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:19,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773331495] [2024-11-23 18:41:19,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:19,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:19,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:41:19,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:19,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773331495] [2024-11-23 18:41:19,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773331495] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:19,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:19,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:41:19,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280363521] [2024-11-23 18:41:19,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:19,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:41:19,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:19,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:41:19,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:19,555 INFO L87 Difference]: Start difference. First operand has 58 states, 38 states have (on average 1.5789473684210527) internal successors, (60), 51 states have internal predecessors, (60), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 18:41:19,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:19,627 INFO L93 Difference]: Finished difference Result 112 states and 135 transitions. [2024-11-23 18:41:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:41:19,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-23 18:41:19,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:19,638 INFO L225 Difference]: With dead ends: 112 [2024-11-23 18:41:19,638 INFO L226 Difference]: Without dead ends: 55 [2024-11-23 18:41:19,643 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:19,646 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 1 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:19,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 179 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:19,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-23 18:41:19,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-23 18:41:19,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 37 states have (on average 1.4594594594594594) internal successors, (54), 49 states have internal predecessors, (54), 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) [2024-11-23 18:41:19,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions. [2024-11-23 18:41:19,692 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 11 [2024-11-23 18:41:19,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:19,694 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 62 transitions. [2024-11-23 18:41:19,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 18:41:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions. [2024-11-23 18:41:19,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-23 18:41:19,695 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:19,695 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:19,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 18:41:19,696 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:19,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:19,697 INFO L85 PathProgramCache]: Analyzing trace with hash 763252635, now seen corresponding path program 1 times [2024-11-23 18:41:19,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:19,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300789927] [2024-11-23 18:41:19,698 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:19,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:41:19,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:19,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300789927] [2024-11-23 18:41:19,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300789927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:41:19,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975237449] [2024-11-23 18:41:19,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:19,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:19,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:41:19,923 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:41:19,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 18:41:20,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:20,053 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:41:20,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:41:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:41:20,144 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:41:20,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975237449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:20,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:41:20,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 18:41:20,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237998137] [2024-11-23 18:41:20,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:20,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:41:20,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:20,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:41:20,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:41:20,149 INFO L87 Difference]: Start difference. First operand 55 states and 62 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2024-11-23 18:41:20,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:20,189 INFO L93 Difference]: Finished difference Result 97 states and 110 transitions. [2024-11-23 18:41:20,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:41:20,190 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 [2024-11-23 18:41:20,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:20,191 INFO L225 Difference]: With dead ends: 97 [2024-11-23 18:41:20,191 INFO L226 Difference]: Without dead ends: 50 [2024-11-23 18:41:20,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:41:20,192 INFO L435 NwaCegarLoop]: 51 mSDtfsCounter, 0 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:20,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 149 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:20,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-23 18:41:20,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-23 18:41:20,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.411764705882353) internal successors, (48), 44 states have internal predecessors, (48), 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) [2024-11-23 18:41:20,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 56 transitions. [2024-11-23 18:41:20,200 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 56 transitions. Word has length 15 [2024-11-23 18:41:20,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:20,200 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 56 transitions. [2024-11-23 18:41:20,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2024-11-23 18:41:20,201 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2024-11-23 18:41:20,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-23 18:41:20,201 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:20,201 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:20,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 18:41:20,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:20,406 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:20,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:20,407 INFO L85 PathProgramCache]: Analyzing trace with hash -951526109, now seen corresponding path program 1 times [2024-11-23 18:41:20,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:20,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063676664] [2024-11-23 18:41:20,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:20,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:20,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:20,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 18:41:20,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:20,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063676664] [2024-11-23 18:41:20,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063676664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:20,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:20,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:41:20,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813442495] [2024-11-23 18:41:20,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:20,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:41:20,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:20,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:41:20,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:20,464 INFO L87 Difference]: Start difference. First operand 50 states and 56 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-23 18:41:20,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:20,508 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2024-11-23 18:41:20,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:41:20,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 17 [2024-11-23 18:41:20,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:20,511 INFO L225 Difference]: With dead ends: 97 [2024-11-23 18:41:20,513 INFO L226 Difference]: Without dead ends: 57 [2024-11-23 18:41:20,513 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 [2024-11-23 18:41:20,514 INFO L435 NwaCegarLoop]: 55 mSDtfsCounter, 11 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 99 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 [2024-11-23 18:41:20,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 99 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:20,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-23 18:41:20,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2024-11-23 18:41:20,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 39 states have (on average 1.4102564102564104) internal successors, (55), 47 states have internal predecessors, (55), 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) [2024-11-23 18:41:20,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-23 18:41:20,530 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 17 [2024-11-23 18:41:20,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:20,530 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-23 18:41:20,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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) [2024-11-23 18:41:20,532 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-23 18:41:20,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-23 18:41:20,532 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:20,532 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:20,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 18:41:20,533 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:20,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:20,534 INFO L85 PathProgramCache]: Analyzing trace with hash 567461771, now seen corresponding path program 1 times [2024-11-23 18:41:20,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:20,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229246463] [2024-11-23 18:41:20,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:20,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:20,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 18:41:20,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:20,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229246463] [2024-11-23 18:41:20,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229246463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:20,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:20,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:41:20,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866417369] [2024-11-23 18:41:20,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:20,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:41:20,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:20,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:41:20,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:20,669 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-23 18:41:20,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:20,695 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2024-11-23 18:41:20,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:41:20,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 18 [2024-11-23 18:41:20,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:20,701 INFO L225 Difference]: With dead ends: 54 [2024-11-23 18:41:20,701 INFO L226 Difference]: Without dead ends: 53 [2024-11-23 18:41:20,701 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 [2024-11-23 18:41:20,702 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 10 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:20,703 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 82 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:20,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-23 18:41:20,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2024-11-23 18:41:20,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 46 states have internal predecessors, (54), 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) [2024-11-23 18:41:20,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 62 transitions. [2024-11-23 18:41:20,710 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 62 transitions. Word has length 18 [2024-11-23 18:41:20,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:20,711 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 62 transitions. [2024-11-23 18:41:20,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-11-23 18:41:20,711 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 62 transitions. [2024-11-23 18:41:20,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-23 18:41:20,712 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:20,712 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:20,712 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 18:41:20,712 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:20,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash 413881771, now seen corresponding path program 1 times [2024-11-23 18:41:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:20,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554400096] [2024-11-23 18:41:20,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:20,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:20,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:20,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-23 18:41:20,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:20,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554400096] [2024-11-23 18:41:20,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554400096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:20,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:20,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:41:20,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965215814] [2024-11-23 18:41:20,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:20,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:41:20,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:20,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:41:20,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:20,800 INFO L87 Difference]: Start difference. First operand 53 states and 62 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-11-23 18:41:20,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:20,829 INFO L93 Difference]: Finished difference Result 84 states and 98 transitions. [2024-11-23 18:41:20,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:41:20,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 19 [2024-11-23 18:41:20,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:20,834 INFO L225 Difference]: With dead ends: 84 [2024-11-23 18:41:20,834 INFO L226 Difference]: Without dead ends: 62 [2024-11-23 18:41:20,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:20,835 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:20,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 99 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:20,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-11-23 18:41:20,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 54. [2024-11-23 18:41:20,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 40 states have (on average 1.375) internal successors, (55), 47 states have internal predecessors, (55), 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) [2024-11-23 18:41:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2024-11-23 18:41:20,851 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 19 [2024-11-23 18:41:20,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:20,852 INFO L471 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2024-11-23 18:41:20,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2024-11-23 18:41:20,852 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2024-11-23 18:41:20,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-23 18:41:20,852 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:20,853 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:20,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 18:41:20,853 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:20,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:20,856 INFO L85 PathProgramCache]: Analyzing trace with hash 419184660, now seen corresponding path program 1 times [2024-11-23 18:41:20,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:20,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049369420] [2024-11-23 18:41:20,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:20,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:20,934 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-23 18:41:20,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:20,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049369420] [2024-11-23 18:41:20,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049369420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:20,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:20,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:41:20,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566193734] [2024-11-23 18:41:20,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:20,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:41:20,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:20,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:41:20,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:20,936 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 18:41:20,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:20,971 INFO L93 Difference]: Finished difference Result 68 states and 82 transitions. [2024-11-23 18:41:20,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:41:20,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2024-11-23 18:41:20,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:20,973 INFO L225 Difference]: With dead ends: 68 [2024-11-23 18:41:20,973 INFO L226 Difference]: Without dead ends: 66 [2024-11-23 18:41:20,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:20,974 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 5 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:20,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 142 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:20,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-11-23 18:41:20,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-11-23 18:41:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 50 states have (on average 1.32) internal successors, (66), 57 states have internal predecessors, (66), 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) [2024-11-23 18:41:20,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2024-11-23 18:41:20,989 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 23 [2024-11-23 18:41:20,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:20,989 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2024-11-23 18:41:20,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-23 18:41:20,991 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2024-11-23 18:41:20,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-23 18:41:20,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:20,992 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:20,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 18:41:20,992 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:20,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:20,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1196530519, now seen corresponding path program 1 times [2024-11-23 18:41:20,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:20,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6503554] [2024-11-23 18:41:20,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:20,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:21,115 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 18:41:21,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:21,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6503554] [2024-11-23 18:41:21,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6503554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:21,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:21,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:41:21,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145408477] [2024-11-23 18:41:21,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:21,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:41:21,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:21,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:41:21,118 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:21,118 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-23 18:41:21,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:21,154 INFO L93 Difference]: Finished difference Result 87 states and 100 transitions. [2024-11-23 18:41:21,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:41:21,157 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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 29 [2024-11-23 18:41:21,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:21,158 INFO L225 Difference]: With dead ends: 87 [2024-11-23 18:41:21,158 INFO L226 Difference]: Without dead ends: 70 [2024-11-23 18:41:21,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:21,159 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 1 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:21,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 145 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:21,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-23 18:41:21,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-23 18:41:21,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 61 states have internal predecessors, (70), 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) [2024-11-23 18:41:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 82 transitions. [2024-11-23 18:41:21,177 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 82 transitions. Word has length 29 [2024-11-23 18:41:21,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:21,178 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 82 transitions. [2024-11-23 18:41:21,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) [2024-11-23 18:41:21,178 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 82 transitions. [2024-11-23 18:41:21,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-23 18:41:21,179 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:21,179 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:21,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 18:41:21,182 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:21,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:21,183 INFO L85 PathProgramCache]: Analyzing trace with hash -758931438, now seen corresponding path program 1 times [2024-11-23 18:41:21,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:21,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551972831] [2024-11-23 18:41:21,183 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:21,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-23 18:41:21,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:21,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551972831] [2024-11-23 18:41:21,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551972831] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:41:21,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585559794] [2024-11-23 18:41:21,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:21,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:21,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:41:21,339 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:41:21,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 18:41:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:21,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:41:21,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:41:21,505 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-23 18:41:21,505 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:41:21,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585559794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:21,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:41:21,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 18:41:21,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440788174] [2024-11-23 18:41:21,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:21,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:41:21,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:21,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:41:21,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:41:21,507 INFO L87 Difference]: Start difference. First operand 70 states and 82 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 18:41:21,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:21,549 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2024-11-23 18:41:21,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:41:21,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 33 [2024-11-23 18:41:21,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:21,551 INFO L225 Difference]: With dead ends: 102 [2024-11-23 18:41:21,551 INFO L226 Difference]: Without dead ends: 55 [2024-11-23 18:41:21,551 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:41:21,552 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 4 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:21,552 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 134 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:21,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-23 18:41:21,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2024-11-23 18:41:21,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 39 states have (on average 1.2307692307692308) internal successors, (48), 45 states have internal predecessors, (48), 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) [2024-11-23 18:41:21,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-23 18:41:21,569 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 33 [2024-11-23 18:41:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:21,571 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-23 18:41:21,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-23 18:41:21,571 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-23 18:41:21,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-23 18:41:21,574 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:21,575 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:21,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 18:41:21,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:21,775 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:21,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:21,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1012665443, now seen corresponding path program 1 times [2024-11-23 18:41:21,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:21,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134265435] [2024-11-23 18:41:21,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:21,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:21,890 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 18:41:21,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:21,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134265435] [2024-11-23 18:41:21,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134265435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:41:21,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004144867] [2024-11-23 18:41:21,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:21,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:21,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:41:21,894 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:41:21,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 18:41:21,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:21,988 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:41:21,990 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:41:22,026 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 18:41:22,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:41:22,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004144867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:22,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:41:22,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 18:41:22,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863571242] [2024-11-23 18:41:22,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:22,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:41:22,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:22,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:41:22,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:41:22,028 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-23 18:41:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:22,061 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2024-11-23 18:41:22,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:41:22,062 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 33 [2024-11-23 18:41:22,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:22,063 INFO L225 Difference]: With dead ends: 67 [2024-11-23 18:41:22,063 INFO L226 Difference]: Without dead ends: 46 [2024-11-23 18:41:22,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:41:22,064 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:22,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:22,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-23 18:41:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-23 18:41:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.1666666666666667) internal successors, (42), 40 states have internal predecessors, (42), 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) [2024-11-23 18:41:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2024-11-23 18:41:22,076 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 33 [2024-11-23 18:41:22,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:22,076 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2024-11-23 18:41:22,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-23 18:41:22,076 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-11-23 18:41:22,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-23 18:41:22,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:22,077 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:22,083 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 18:41:22,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:22,278 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:22,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:22,278 INFO L85 PathProgramCache]: Analyzing trace with hash 1327925425, now seen corresponding path program 1 times [2024-11-23 18:41:22,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:22,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110476915] [2024-11-23 18:41:22,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:22,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:22,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:22,340 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 18:41:22,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:22,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110476915] [2024-11-23 18:41:22,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110476915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:22,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:22,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:41:22,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447674626] [2024-11-23 18:41:22,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:22,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:41:22,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:22,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:41:22,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:22,343 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-23 18:41:22,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:22,357 INFO L93 Difference]: Finished difference Result 46 states and 50 transitions. [2024-11-23 18:41:22,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:41:22,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 34 [2024-11-23 18:41:22,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:22,358 INFO L225 Difference]: With dead ends: 46 [2024-11-23 18:41:22,359 INFO L226 Difference]: Without dead ends: 45 [2024-11-23 18:41:22,359 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 [2024-11-23 18:41:22,360 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 8 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:22,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 78 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:22,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2024-11-23 18:41:22,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2024-11-23 18:41:22,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 39 states have internal predecessors, (41), 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) [2024-11-23 18:41:22,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 49 transitions. [2024-11-23 18:41:22,368 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 49 transitions. Word has length 34 [2024-11-23 18:41:22,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:22,368 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 49 transitions. [2024-11-23 18:41:22,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2024-11-23 18:41:22,368 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 49 transitions. [2024-11-23 18:41:22,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-23 18:41:22,369 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:22,369 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:22,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-23 18:41:22,370 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:22,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:22,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1783984661, now seen corresponding path program 1 times [2024-11-23 18:41:22,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:22,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569322936] [2024-11-23 18:41:22,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:22,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:22,421 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-23 18:41:22,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:22,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569322936] [2024-11-23 18:41:22,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569322936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:22,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:22,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 18:41:22,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055264949] [2024-11-23 18:41:22,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:22,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 18:41:22,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:22,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 18:41:22,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 18:41:22,423 INFO L87 Difference]: Start difference. First operand 45 states and 49 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-23 18:41:22,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:22,434 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2024-11-23 18:41:22,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 18:41:22,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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 35 [2024-11-23 18:41:22,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:22,436 INFO L225 Difference]: With dead ends: 45 [2024-11-23 18:41:22,436 INFO L226 Difference]: Without dead ends: 44 [2024-11-23 18:41:22,436 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 [2024-11-23 18:41:22,437 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 6 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:22,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 79 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:22,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2024-11-23 18:41:22,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2024-11-23 18:41:22,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 38 states have internal predecessors, (40), 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) [2024-11-23 18:41:22,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2024-11-23 18:41:22,447 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 35 [2024-11-23 18:41:22,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:22,448 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2024-11-23 18:41:22,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-23 18:41:22,448 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2024-11-23 18:41:22,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-23 18:41:22,450 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:22,451 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:22,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-23 18:41:22,451 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:22,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:22,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1965169587, now seen corresponding path program 1 times [2024-11-23 18:41:22,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:22,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322227846] [2024-11-23 18:41:22,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:22,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:22,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:22,560 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 18:41:22,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:22,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322227846] [2024-11-23 18:41:22,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322227846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:22,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 18:41:22,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 18:41:22,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466752690] [2024-11-23 18:41:22,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:22,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 18:41:22,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:22,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 18:41:22,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:22,562 INFO L87 Difference]: Start difference. First operand 44 states and 48 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 18:41:22,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:22,593 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2024-11-23 18:41:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 18:41:22,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-11-23 18:41:22,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:22,594 INFO L225 Difference]: With dead ends: 53 [2024-11-23 18:41:22,594 INFO L226 Difference]: Without dead ends: 51 [2024-11-23 18:41:22,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 18:41:22,595 INFO L435 NwaCegarLoop]: 44 mSDtfsCounter, 1 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:22,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 127 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:22,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-23 18:41:22,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-23 18:41:22,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 44 states have internal predecessors, (46), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-23 18:41:22,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-23 18:41:22,608 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 41 [2024-11-23 18:41:22,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:22,609 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-23 18:41:22,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-23 18:41:22,609 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-23 18:41:22,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-23 18:41:22,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 18:41:22,613 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:22,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-23 18:41:22,613 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2024-11-23 18:41:22,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 18:41:22,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1028022876, now seen corresponding path program 1 times [2024-11-23 18:41:22,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 18:41:22,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611365525] [2024-11-23 18:41:22,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:22,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 18:41:22,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:22,744 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-23 18:41:22,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 18:41:22,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611365525] [2024-11-23 18:41:22,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611365525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 18:41:22,744 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577270267] [2024-11-23 18:41:22,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 18:41:22,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:22,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 18:41:22,746 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 18:41:22,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 18:41:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 18:41:22,834 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 18:41:22,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 18:41:22,881 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-23 18:41:22,881 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 18:41:22,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577270267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 18:41:22,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 18:41:22,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 18:41:22,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299756124] [2024-11-23 18:41:22,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 18:41:22,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 18:41:22,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 18:41:22,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 18:41:22,885 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:41:22,885 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-23 18:41:22,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 18:41:22,909 INFO L93 Difference]: Finished difference Result 55 states and 59 transitions. [2024-11-23 18:41:22,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 18:41:22,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2024-11-23 18:41:22,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 18:41:22,911 INFO L225 Difference]: With dead ends: 55 [2024-11-23 18:41:22,911 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 18:41:22,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 18:41:22,913 INFO L435 NwaCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 18:41:22,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 159 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 18:41:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 18:41:22,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 18:41:22,915 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) [2024-11-23 18:41:22,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 18:41:22,916 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2024-11-23 18:41:22,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 18:41:22,916 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 18:41:22,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-23 18:41:22,916 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 18:41:22,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 18:41:22,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 12 remaining) [2024-11-23 18:41:22,920 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 12 remaining) [2024-11-23 18:41:22,921 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 12 remaining) [2024-11-23 18:41:22,921 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 12 remaining) [2024-11-23 18:41:22,922 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 12 remaining) [2024-11-23 18:41:22,922 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 12 remaining) [2024-11-23 18:41:22,922 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 12 remaining) [2024-11-23 18:41:22,922 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 12 remaining) [2024-11-23 18:41:22,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 12 remaining) [2024-11-23 18:41:22,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 12 remaining) [2024-11-23 18:41:22,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 12 remaining) [2024-11-23 18:41:22,923 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 12 remaining) [2024-11-23 18:41:22,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-23 18:41:23,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 18:41:23,127 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 18:41:23,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 18:41:23,259 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 18:41:23,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 06:41:23 BoogieIcfgContainer [2024-11-23 18:41:23,281 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 18:41:23,281 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 18:41:23,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 18:41:23,282 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 18:41:23,283 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:41:18" (3/4) ... [2024-11-23 18:41:23,285 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 18:41:23,290 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2024-11-23 18:41:23,291 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2024-11-23 18:41:23,296 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-23 18:41:23,298 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-23 18:41:23,298 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 18:41:23,402 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 18:41:23,402 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 18:41:23,402 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 18:41:23,403 INFO L158 Benchmark]: Toolchain (without parser) took 6125.49ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 90.3MB in the beginning and 132.6MB in the end (delta: -42.4MB). Peak memory consumption was 191.5MB. Max. memory is 16.1GB. [2024-11-23 18:41:23,404 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory was 103.5MB in the beginning and 103.3MB in the end (delta: 216.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:23,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1180.20ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 82.0MB in the end (delta: 8.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. [2024-11-23 18:41:23,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.18ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 79.4MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:41:23,404 INFO L158 Benchmark]: Boogie Preprocessor took 34.42ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:23,405 INFO L158 Benchmark]: RCFGBuilder took 456.15ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 64.0MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 18:41:23,405 INFO L158 Benchmark]: TraceAbstraction took 4282.11ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 63.4MB in the beginning and 138.7MB in the end (delta: -75.3MB). Peak memory consumption was 167.1MB. Max. memory is 16.1GB. [2024-11-23 18:41:23,405 INFO L158 Benchmark]: Witness Printer took 120.92ms. Allocated memory is still 352.3MB. Free memory was 138.7MB in the beginning and 132.6MB in the end (delta: 6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 18:41:23,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 167.8MB. Free memory was 103.5MB in the beginning and 103.3MB in the end (delta: 216.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1180.20ms. Allocated memory is still 117.4MB. Free memory was 90.3MB in the beginning and 82.0MB in the end (delta: 8.2MB). Peak memory consumption was 66.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.18ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 79.4MB in the end (delta: 2.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.42ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 456.15ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 64.0MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 4282.11ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 63.4MB in the beginning and 138.7MB in the end (delta: -75.3MB). Peak memory consumption was 167.1MB. Max. memory is 16.1GB. * Witness Printer took 120.92ms. Allocated memory is still 352.3MB. Free memory was 138.7MB in the beginning and 132.6MB in the end (delta: 6.1MB). There was no memory consumed. 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: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1553]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1557]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1575]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1575]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1579]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1579]: 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, 58 locations, 12 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 62 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 1649 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1009 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 640 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 171 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred in iteration=7, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 474 ConstructedInterpolants, 0 QuantifiedInterpolants, 682 SizeOfPredicates, 0 NumberOfNonLiveVariables, 472 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 123/127 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 12 specifications checked. All of them hold - InvariantResult [Line: 1575]: Loop Invariant Derived loop invariant: (((1 <= h) && (((long) data + 2) == 0)) || ((h == 0) && (0 <= ((long) data + 2)))) - InvariantResult [Line: 1557]: Loop Invariant Derived loop invariant: (((1 <= k) && (data <= 2147483647)) || ((k == 0) && (data <= 2147483647))) - InvariantResult [Line: 1579]: Loop Invariant Derived loop invariant: (((j == 0) && (((long) data + 2) == 0)) || ((1 <= j) && (((long) data + 2) == 0))) - InvariantResult [Line: 1553]: Loop Invariant Derived loop invariant: ((((0 <= ((long) 2147483647 + data)) && (i == 0)) && (data <= 2147483647)) || ((1 <= i) && (data <= 2147483647))) RESULT: Ultimate proved your program to be correct! [2024-11-23 18:41:23,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ef699dda-3c9c-4b7d-9136-aa2bfe49d644/bin/uautomizer-verify-LYvppIcaGC/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