./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_67_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_67_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 50abadbe4b1d4768245546988abd0f1495c9642337425970e1aeecbb15d77d07 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:51:34,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:51:34,206 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:51:34,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:51:34,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:51:34,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:51:34,239 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:51:34,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:51:34,240 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:51:34,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:51:34,242 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:51:34,242 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:51:34,243 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:51:34,243 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:51:34,244 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:51:34,245 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:51:34,245 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:51:34,246 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:51:34,246 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:51:34,247 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:51:34,248 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:51:34,253 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:51:34,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:51:34,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:51:34,256 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:51:34,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:51:34,257 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:51:34,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:51:34,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:51:34,258 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:51:34,259 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:51:34,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:51:34,260 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:51:34,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:51:34,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:51:34,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:34,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:51:34,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:51:34,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:51:34,262 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:51:34,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:51:34,263 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:51:34,263 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:51:34,264 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:51:34,264 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50abadbe4b1d4768245546988abd0f1495c9642337425970e1aeecbb15d77d07 [2023-11-12 00:51:34,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:51:34,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:51:34,593 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:51:34,594 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:51:34,595 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:51:34,596 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_67_good.i [2023-11-12 00:51:37,725 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:51:38,183 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:51:38,185 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_predec_67_good.i [2023-11-12 00:51:38,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/data/3982c99fc/d6e87cafd2e044d1a36e2edfc3a1a11e/FLAG931d4ace7 [2023-11-12 00:51:38,238 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/data/3982c99fc/d6e87cafd2e044d1a36e2edfc3a1a11e [2023-11-12 00:51:38,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:51:38,248 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:51:38,251 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:38,251 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:51:38,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:51:38,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:38" (1/1) ... [2023-11-12 00:51:38,264 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395622f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:38, skipping insertion in model container [2023-11-12 00:51:38,264 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:51:38" (1/1) ... [2023-11-12 00:51:38,365 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:51:38,797 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:51:39,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:39,318 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:51:39,338 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:51:39,435 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:51:39,541 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:51:39,541 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:51:39,542 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:51:39,542 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:51:39,542 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:51:39,550 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:51:39,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39 WrapperNode [2023-11-12 00:51:39,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:51:39,552 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:39,552 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:51:39,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:51:39,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,625 INFO L138 Inliner]: procedures = 503, calls = 84, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 89 [2023-11-12 00:51:39,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:51:39,627 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:51:39,627 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:51:39,627 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:51:39,637 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,637 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,642 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,642 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,650 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,656 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:51:39,660 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:51:39,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:51:39,661 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:51:39,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (1/1) ... [2023-11-12 00:51:39,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:51:39,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:51:39,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:51:39,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:51:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-12 00:51:39,762 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-12 00:51:39,762 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-12 00:51:39,764 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-12 00:51:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:51:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:51:39,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:51:39,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:51:39,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:51:39,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:51:39,766 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-12 00:51:39,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:51:39,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:51:39,993 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:51:39,996 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:51:40,260 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:51:40,390 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:51:40,390 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:51:40,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:40 BoogieIcfgContainer [2023-11-12 00:51:40,393 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:51:40,395 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:51:40,395 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:51:40,415 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:51:40,416 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:51:38" (1/3) ... [2023-11-12 00:51:40,416 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472f0343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:40, skipping insertion in model container [2023-11-12 00:51:40,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:51:39" (2/3) ... [2023-11-12 00:51:40,417 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@472f0343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:51:40, skipping insertion in model container [2023-11-12 00:51:40,417 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:40" (3/3) ... [2023-11-12 00:51:40,419 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_predec_67_good.i [2023-11-12 00:51:40,437 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:51:40,437 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-12 00:51:40,497 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:51:40,502 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, 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;@312239db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:51:40,502 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-12 00:51:40,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 18 states have internal predecessors, (18), 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) [2023-11-12 00:51:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:51:40,510 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:40,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 00:51:40,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:51:40,516 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:40,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1469598978, now seen corresponding path program 1 times [2023-11-12 00:51:40,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:40,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352055013] [2023-11-12 00:51:40,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:40,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:40,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:41,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:41,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:41,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352055013] [2023-11-12 00:51:41,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352055013] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:41,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:41,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:41,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931486187] [2023-11-12 00:51:41,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:41,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:41,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:41,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:41,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:41,100 INFO L87 Difference]: Start difference. First operand has 25 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 18 states have internal predecessors, (18), 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 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:51:41,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:41,191 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2023-11-12 00:51:41,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:41,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 6 [2023-11-12 00:51:41,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:41,201 INFO L225 Difference]: With dead ends: 25 [2023-11-12 00:51:41,201 INFO L226 Difference]: Without dead ends: 17 [2023-11-12 00:51:41,203 INFO L412 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 [2023-11-12 00:51:41,208 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:41,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:41,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-11-12 00:51:41,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-11-12 00:51:41,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 10 states have (on average 1.2) internal successors, (12), 12 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 00:51:41,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 16 transitions. [2023-11-12 00:51:41,249 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 16 transitions. Word has length 6 [2023-11-12 00:51:41,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:41,250 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 16 transitions. [2023-11-12 00:51:41,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:51:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2023-11-12 00:51:41,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:51:41,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:41,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:41,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:51:41,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:51:41,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:41,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1687071986, now seen corresponding path program 1 times [2023-11-12 00:51:41,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:41,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134424520] [2023-11-12 00:51:41,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:41,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:41,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:41,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134424520] [2023-11-12 00:51:41,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134424520] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:41,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:41,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:41,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033200557] [2023-11-12 00:51:41,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:41,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:41,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:41,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:41,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:41,414 INFO L87 Difference]: Start difference. First operand 17 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:51:41,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:41,456 INFO L93 Difference]: Finished difference Result 17 states and 16 transitions. [2023-11-12 00:51:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:41,458 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 7 [2023-11-12 00:51:41,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:41,459 INFO L225 Difference]: With dead ends: 17 [2023-11-12 00:51:41,459 INFO L226 Difference]: Without dead ends: 16 [2023-11-12 00:51:41,459 INFO L412 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 [2023-11-12 00:51:41,461 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:41,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:41,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-12 00:51:41,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-12 00:51:41,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.1) internal successors, (11), 11 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 00:51:41,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2023-11-12 00:51:41,467 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 7 [2023-11-12 00:51:41,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:41,468 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2023-11-12 00:51:41,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-12 00:51:41,468 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2023-11-12 00:51:41,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:51:41,469 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:41,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:41,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:51:41,470 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:51:41,470 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:41,471 INFO L85 PathProgramCache]: Analyzing trace with hash -2068526515, now seen corresponding path program 1 times [2023-11-12 00:51:41,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:41,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087697117] [2023-11-12 00:51:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:41,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:41,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:41,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:41,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087697117] [2023-11-12 00:51:41,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087697117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:41,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:41,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:41,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452208466] [2023-11-12 00:51:41,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:41,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:41,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:41,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:41,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:41,610 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:51:41,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:41,685 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2023-11-12 00:51:41,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:41,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 13 [2023-11-12 00:51:41,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:41,695 INFO L225 Difference]: With dead ends: 16 [2023-11-12 00:51:41,695 INFO L226 Difference]: Without dead ends: 15 [2023-11-12 00:51:41,697 INFO L412 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 [2023-11-12 00:51:41,702 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:41,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 15 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:51:41,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-12 00:51:41,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-12 00:51:41,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 00:51:41,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2023-11-12 00:51:41,708 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 13 [2023-11-12 00:51:41,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:41,708 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2023-11-12 00:51:41,709 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:51:41,709 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2023-11-12 00:51:41,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 00:51:41,710 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:51:41,710 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:51:41,710 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:51:41,711 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-12 00:51:41,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:51:41,717 INFO L85 PathProgramCache]: Analyzing trace with hash 300187536, now seen corresponding path program 1 times [2023-11-12 00:51:41,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:51:41,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102931909] [2023-11-12 00:51:41,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:51:41,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:51:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:51:42,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:51:42,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:51:42,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102931909] [2023-11-12 00:51:42,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102931909] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:51:42,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:51:42,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:51:42,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140593121] [2023-11-12 00:51:42,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:51:42,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:51:42,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:51:42,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:51:42,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:51:42,050 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:51:42,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:51:42,079 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2023-11-12 00:51:42,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:51:42,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (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 14 [2023-11-12 00:51:42,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:51:42,081 INFO L225 Difference]: With dead ends: 15 [2023-11-12 00:51:42,081 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:51:42,082 INFO L412 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 [2023-11-12 00:51:42,092 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:51:42,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:51:42,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:51:42,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:51:42,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:51:42,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:51:42,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2023-11-12 00:51:42,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:51:42,097 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:51:42,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:51:42,098 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:51:42,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:51:42,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-12 00:51:42,101 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-12 00:51:42,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-12 00:51:42,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-12 00:51:42,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:51:42,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:51:42,126 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-12 00:51:42,127 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-12 00:51:42,127 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-12 00:51:42,127 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-12 00:51:42,127 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1588) no Hoare annotation was computed. [2023-11-12 00:51:42,127 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:51:42,128 INFO L902 garLoopResultBuilder]: At program point L1600(line 1600) the Hoare annotation is: true [2023-11-12 00:51:42,128 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1598) no Hoare annotation was computed. [2023-11-12 00:51:42,128 INFO L899 garLoopResultBuilder]: For program point L1600-1(line 1600) no Hoare annotation was computed. [2023-11-12 00:51:42,128 INFO L899 garLoopResultBuilder]: For program point L1598(line 1598) no Hoare annotation was computed. [2023-11-12 00:51:42,128 INFO L899 garLoopResultBuilder]: For program point L1598-1(line 1598) no Hoare annotation was computed. [2023-11-12 00:51:42,128 INFO L899 garLoopResultBuilder]: For program point L1596(lines 1596 1605) no Hoare annotation was computed. [2023-11-12 00:51:42,129 INFO L895 garLoopResultBuilder]: At program point L1590(line 1590) the Hoare annotation is: (<= (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fscanf_predec_67b_goodG2BSink_~data~2#1|) 0) [2023-11-12 00:51:42,129 INFO L899 garLoopResultBuilder]: For program point L1590-1(line 1590) no Hoare annotation was computed. [2023-11-12 00:51:42,129 INFO L899 garLoopResultBuilder]: For program point L1588(line 1588) no Hoare annotation was computed. [2023-11-12 00:51:42,129 INFO L899 garLoopResultBuilder]: For program point L1588-1(line 1588) no Hoare annotation was computed. [2023-11-12 00:51:42,129 INFO L902 garLoopResultBuilder]: At program point L1582(line 1582) the Hoare annotation is: true [2023-11-12 00:51:42,129 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2023-11-12 00:51:42,130 INFO L902 garLoopResultBuilder]: At program point L1580(line 1580) the Hoare annotation is: true [2023-11-12 00:51:42,130 INFO L899 garLoopResultBuilder]: For program point L1580-1(line 1580) no Hoare annotation was computed. [2023-11-12 00:51:42,130 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:51:42,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1588) no Hoare annotation was computed. [2023-11-12 00:51:42,130 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1598) no Hoare annotation was computed. [2023-11-12 00:51:42,130 INFO L902 garLoopResultBuilder]: At program point L1604(line 1604) the Hoare annotation is: true [2023-11-12 00:51:42,131 INFO L899 garLoopResultBuilder]: For program point L1604-1(lines 1596 1605) no Hoare annotation was computed. [2023-11-12 00:51:42,134 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 00:51:42,137 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:51:42,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:51:42 BoogieIcfgContainer [2023-11-12 00:51:42,143 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:51:42,145 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:51:42,145 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:51:42,145 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:51:42,146 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:51:40" (3/4) ... [2023-11-12 00:51:42,149 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:51:42,153 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-12 00:51:42,154 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-12 00:51:42,163 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-12 00:51:42,164 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-12 00:51:42,164 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:51:42,165 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:51:42,275 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:51:42,275 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:51:42,275 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:51:42,276 INFO L158 Benchmark]: Toolchain (without parser) took 4027.68ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 97.7MB in the beginning and 95.9MB in the end (delta: 1.8MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2023-11-12 00:51:42,276 INFO L158 Benchmark]: CDTParser took 1.30ms. Allocated memory is still 109.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:51:42,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1300.12ms. Allocated memory is still 144.7MB. Free memory was 97.7MB in the beginning and 63.1MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-12 00:51:42,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.06ms. Allocated memory is still 144.7MB. Free memory was 63.1MB in the beginning and 60.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:51:42,278 INFO L158 Benchmark]: Boogie Preprocessor took 32.79ms. Allocated memory is still 144.7MB. Free memory was 60.1MB in the beginning and 58.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:51:42,278 INFO L158 Benchmark]: RCFGBuilder took 732.69ms. Allocated memory is still 144.7MB. Free memory was 58.0MB in the beginning and 111.3MB in the end (delta: -53.3MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2023-11-12 00:51:42,279 INFO L158 Benchmark]: TraceAbstraction took 1748.13ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 110.4MB in the beginning and 101.1MB in the end (delta: 9.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. [2023-11-12 00:51:42,279 INFO L158 Benchmark]: Witness Printer took 130.52ms. Allocated memory is still 174.1MB. Free memory was 101.1MB in the beginning and 95.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:51:42,282 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.30ms. Allocated memory is still 109.1MB. Free memory is still 76.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1300.12ms. Allocated memory is still 144.7MB. Free memory was 97.7MB in the beginning and 63.1MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.06ms. Allocated memory is still 144.7MB. Free memory was 63.1MB in the beginning and 60.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.79ms. Allocated memory is still 144.7MB. Free memory was 60.1MB in the beginning and 58.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 732.69ms. Allocated memory is still 144.7MB. Free memory was 58.0MB in the beginning and 111.3MB in the end (delta: -53.3MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1748.13ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 110.4MB in the beginning and 101.1MB in the end (delta: 9.3MB). Peak memory consumption was 39.4MB. Max. memory is 16.1GB. * Witness Printer took 130.52ms. Allocated memory is still 174.1MB. Free memory was 101.1MB in the beginning and 95.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1588]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1588]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1598]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1598]: 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, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 45 IncrementalHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 42 mSDtfsCounter, 45 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 11 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 00:51:42,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa4394ab-af5d-4d86-a797-c2eac440e9e4/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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