./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_21_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_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/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_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_21_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/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_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/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 ead411554e790e6512b2da53e2ca8cc67c50f544f00b941c54ce9208a83bb0be --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:53:29,300 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:53:29,424 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-12 00:53:29,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:53:29,440 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:53:29,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:53:29,481 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:53:29,482 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:53:29,483 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:53:29,488 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:53:29,489 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:53:29,490 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:53:29,490 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:53:29,492 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:53:29,492 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:53:29,493 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:53:29,493 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:53:29,494 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:53:29,494 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:53:29,495 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:53:29,495 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:53:29,496 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:53:29,497 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:53:29,498 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:53:29,498 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:53:29,499 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:53:29,499 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:53:29,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:53:29,500 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:53:29,500 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:53:29,502 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:53:29,502 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:53:29,502 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:53:29,503 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:53:29,503 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:53:29,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:29,503 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:53:29,504 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:53:29,504 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:53:29,504 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:53:29,504 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:53:29,505 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:53:29,505 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:53:29,505 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:53:29,505 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_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ead411554e790e6512b2da53e2ca8cc67c50f544f00b941c54ce9208a83bb0be [2023-11-12 00:53:29,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:53:29,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:53:29,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:53:29,900 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:53:29,900 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:53:29,902 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_21_good.i [2023-11-12 00:53:33,196 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:53:33,638 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:53:33,643 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_21_good.i [2023-11-12 00:53:33,684 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/data/b573f4264/c1d7f17c556d4d4296cc3394640a0903/FLAGbfe0939bc [2023-11-12 00:53:33,702 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/data/b573f4264/c1d7f17c556d4d4296cc3394640a0903 [2023-11-12 00:53:33,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:53:33,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:53:33,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:33,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:53:33,721 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:53:33,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:33" (1/1) ... [2023-11-12 00:53:33,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f939b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:33, skipping insertion in model container [2023-11-12 00:53:33,725 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:33" (1/1) ... [2023-11-12 00:53:33,828 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:53:34,318 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:53:34,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:34,918 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:53:34,939 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-12 00:53:35,021 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:53:35,198 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:53:35,198 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:53:35,199 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:53:35,199 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:53:35,199 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:53:35,199 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:53:35,207 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:53:35,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35 WrapperNode [2023-11-12 00:53:35,209 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:35,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:35,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:53:35,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:53:35,219 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,260 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,315 INFO L138 Inliner]: procedures = 506, calls = 86, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 117 [2023-11-12 00:53:35,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:53:35,316 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:53:35,316 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:53:35,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:53:35,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,344 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,360 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,373 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,375 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,379 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:53:35,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:53:35,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:53:35,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:53:35,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (1/1) ... [2023-11-12 00:53:35,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:35,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:53:35,446 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:53:35,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:53:35,495 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-12 00:53:35,495 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-12 00:53:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-12 00:53:35,497 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-12 00:53:35,498 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-12 00:53:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:53:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:53:35,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:53:35,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:53:35,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:53:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:53:35,513 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-12 00:53:35,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:53:35,732 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:53:35,734 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:53:35,977 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:53:36,018 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:53:36,018 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:53:36,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:36 BoogieIcfgContainer [2023-11-12 00:53:36,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:53:36,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:53:36,025 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:53:36,028 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:53:36,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:53:33" (1/3) ... [2023-11-12 00:53:36,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691793c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:36, skipping insertion in model container [2023-11-12 00:53:36,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:35" (2/3) ... [2023-11-12 00:53:36,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691793c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:53:36, skipping insertion in model container [2023-11-12 00:53:36,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:36" (3/3) ... [2023-11-12 00:53:36,032 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_21_good.i [2023-11-12 00:53:36,053 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:53:36,053 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-12 00:53:36,099 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:53:36,106 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;@8f3844d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:53:36,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-12 00:53:36,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 26 states have (on average 1.5) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-12 00:53:36,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:53:36,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:36,118 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:36,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:53:36,124 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:36,125 INFO L85 PathProgramCache]: Analyzing trace with hash 64086772, now seen corresponding path program 1 times [2023-11-12 00:53:36,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:36,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402996451] [2023-11-12 00:53:36,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:36,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:36,647 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 00:53:36,648 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:36,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402996451] [2023-11-12 00:53:36,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402996451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:36,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:36,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:53:36,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997399994] [2023-11-12 00:53:36,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:36,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:53:36,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:36,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:53:36,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:53:36,696 INFO L87 Difference]: Start difference. First operand has 45 states, 26 states have (on average 1.5) internal successors, (39), 37 states have internal predecessors, (39), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 00:53:36,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:36,804 INFO L93 Difference]: Finished difference Result 45 states and 59 transitions. [2023-11-12 00:53:36,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:53:36,807 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 10 [2023-11-12 00:53:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:36,815 INFO L225 Difference]: With dead ends: 45 [2023-11-12 00:53:36,815 INFO L226 Difference]: Without dead ends: 38 [2023-11-12 00:53:36,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:53:36,822 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 18 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:36,823 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 164 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:53:36,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-12 00:53:36,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-12 00:53:36,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 23 states have (on average 1.434782608695652) internal successors, (33), 32 states have internal predecessors, (33), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:53:36,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2023-11-12 00:53:36,863 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 10 [2023-11-12 00:53:36,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:36,864 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2023-11-12 00:53:36,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 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 00:53:36,865 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2023-11-12 00:53:36,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-12 00:53:36,866 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:36,866 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:36,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:53:36,867 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:53:36,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:36,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1986689997, now seen corresponding path program 1 times [2023-11-12 00:53:36,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:36,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022726360] [2023-11-12 00:53:36,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:36,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:36,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:36,960 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 00:53:36,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:36,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022726360] [2023-11-12 00:53:36,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022726360] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:36,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:36,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:36,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201318463] [2023-11-12 00:53:36,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:36,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:36,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:36,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:36,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:36,970 INFO L87 Difference]: Start difference. First operand 38 states and 49 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, (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 00:53:37,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:37,007 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2023-11-12 00:53:37,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:37,008 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, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-11-12 00:53:37,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:37,009 INFO L225 Difference]: With dead ends: 38 [2023-11-12 00:53:37,009 INFO L226 Difference]: Without dead ends: 37 [2023-11-12 00:53:37,009 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 00:53:37,011 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:37,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 80 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:53:37,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-11-12 00:53:37,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-11-12 00:53:37,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.391304347826087) internal successors, (32), 31 states have internal predecessors, (32), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2023-11-12 00:53:37,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2023-11-12 00:53:37,021 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2023-11-12 00:53:37,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:37,021 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2023-11-12 00:53:37,021 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, (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 00:53:37,022 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2023-11-12 00:53:37,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:53:37,023 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:37,023 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:37,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 00:53:37,023 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:53:37,024 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:37,024 INFO L85 PathProgramCache]: Analyzing trace with hash 686047319, now seen corresponding path program 1 times [2023-11-12 00:53:37,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:37,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654902542] [2023-11-12 00:53:37,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:37,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:37,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:53:37,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:37,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654902542] [2023-11-12 00:53:37,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654902542] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:37,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:37,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:53:37,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513645123] [2023-11-12 00:53:37,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:37,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:37,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:37,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:37,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:37,146 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-12 00:53:37,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:37,177 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2023-11-12 00:53:37,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:37,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 17 [2023-11-12 00:53:37,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:37,180 INFO L225 Difference]: With dead ends: 60 [2023-11-12 00:53:37,181 INFO L226 Difference]: Without dead ends: 36 [2023-11-12 00:53:37,182 INFO L412 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 [2023-11-12 00:53:37,186 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:37,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 39 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:53:37,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-11-12 00:53:37,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-11-12 00:53:37,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 30 states have internal predecessors, (31), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:53:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 45 transitions. [2023-11-12 00:53:37,206 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 45 transitions. Word has length 17 [2023-11-12 00:53:37,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:37,206 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 45 transitions. [2023-11-12 00:53:37,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2023-11-12 00:53:37,207 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 45 transitions. [2023-11-12 00:53:37,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-12 00:53:37,213 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:37,213 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:37,213 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 00:53:37,214 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:53:37,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:37,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2024341765, now seen corresponding path program 1 times [2023-11-12 00:53:37,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:37,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103111921] [2023-11-12 00:53:37,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:37,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:53:37,495 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:37,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103111921] [2023-11-12 00:53:37,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103111921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:37,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:37,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:53:37,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262848931] [2023-11-12 00:53:37,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:37,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 00:53:37,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:37,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 00:53:37,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:53:37,498 INFO L87 Difference]: Start difference. First operand 36 states and 45 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:53:37,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:37,586 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2023-11-12 00:53:37,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 00:53:37,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-12 00:53:37,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:37,589 INFO L225 Difference]: With dead ends: 36 [2023-11-12 00:53:37,589 INFO L226 Difference]: Without dead ends: 35 [2023-11-12 00:53:37,591 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 00:53:37,593 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 18 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:37,593 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 119 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:53:37,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-11-12 00:53:37,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-12 00:53:37,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 29 states have internal predecessors, (30), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:53:37,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 44 transitions. [2023-11-12 00:53:37,606 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 44 transitions. Word has length 18 [2023-11-12 00:53:37,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:37,607 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 44 transitions. [2023-11-12 00:53:37,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:53:37,608 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2023-11-12 00:53:37,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:53:37,610 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:37,610 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:37,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 00:53:37,611 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:53:37,612 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:37,613 INFO L85 PathProgramCache]: Analyzing trace with hash 1670418925, now seen corresponding path program 1 times [2023-11-12 00:53:37,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:37,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633713462] [2023-11-12 00:53:37,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:37,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:37,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:53:37,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:37,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633713462] [2023-11-12 00:53:37,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633713462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:37,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:37,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:53:37,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414931103] [2023-11-12 00:53:37,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:37,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:37,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:37,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:37,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:37,732 INFO L87 Difference]: Start difference. First operand 35 states and 44 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:53:37,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:37,760 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2023-11-12 00:53:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:37,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-12 00:53:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:37,763 INFO L225 Difference]: With dead ends: 45 [2023-11-12 00:53:37,764 INFO L226 Difference]: Without dead ends: 39 [2023-11-12 00:53:37,764 INFO L412 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 [2023-11-12 00:53:37,766 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 18 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:37,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:53:37,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-12 00:53:37,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-12 00:53:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 25 states have (on average 1.24) internal successors, (31), 31 states have internal predecessors, (31), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:53:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2023-11-12 00:53:37,790 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 19 [2023-11-12 00:53:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:37,790 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2023-11-12 00:53:37,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:53:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2023-11-12 00:53:37,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 00:53:37,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:37,792 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:37,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-12 00:53:37,794 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:53:37,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:37,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1669914817, now seen corresponding path program 1 times [2023-11-12 00:53:37,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:37,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859788704] [2023-11-12 00:53:37,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:37,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:37,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:53:37,878 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:37,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859788704] [2023-11-12 00:53:37,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859788704] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:37,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:37,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 00:53:37,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381728418] [2023-11-12 00:53:37,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:37,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:53:37,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:37,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:53:37,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:53:37,886 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:53:37,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:37,920 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2023-11-12 00:53:37,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:53:37,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-12 00:53:37,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:37,923 INFO L225 Difference]: With dead ends: 39 [2023-11-12 00:53:37,923 INFO L226 Difference]: Without dead ends: 38 [2023-11-12 00:53:37,924 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 00:53:37,928 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:53:37,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:53:37,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-11-12 00:53:37,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2023-11-12 00:53:37,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.2) internal successors, (30), 30 states have internal predecessors, (30), 7 states have call successors, (7), 4 states have call predecessors, (7), 4 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-11-12 00:53:37,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2023-11-12 00:53:37,943 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 19 [2023-11-12 00:53:37,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:37,943 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2023-11-12 00:53:37,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 00:53:37,944 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2023-11-12 00:53:37,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 00:53:37,944 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:53:37,945 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:37,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-12 00:53:37,945 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-12 00:53:37,945 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:53:37,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1060613218, now seen corresponding path program 1 times [2023-11-12 00:53:37,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:53:37,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933525587] [2023-11-12 00:53:37,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:53:37,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:53:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:53:38,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:53:38,052 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:53:38,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933525587] [2023-11-12 00:53:38,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933525587] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:53:38,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:53:38,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:53:38,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745544025] [2023-11-12 00:53:38,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:53:38,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:53:38,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:53:38,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:53:38,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:53:38,055 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 00:53:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:53:38,090 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2023-11-12 00:53:38,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:53:38,090 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2023-11-12 00:53:38,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:53:38,091 INFO L225 Difference]: With dead ends: 38 [2023-11-12 00:53:38,091 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 00:53:38,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:53:38,094 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 3 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 99 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 [2023-11-12 00:53:38,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 99 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:53:38,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 00:53:38,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 00:53:38,096 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 00:53:38,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 00:53:38,097 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2023-11-12 00:53:38,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:53:38,097 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 00:53:38,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-12 00:53:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 00:53:38,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 00:53:38,102 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-12 00:53:38,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-12 00:53:38,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-12 00:53:38,103 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-12 00:53:38,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-12 00:53:38,104 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-12 00:53:38,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 00:53:38,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-12 00:53:38,169 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-12 00:53:38,169 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-12 00:53:38,169 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-12 00:53:38,170 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-12 00:53:38,170 INFO L895 garLoopResultBuilder]: At program point L1567(line 1567) the Hoare annotation is: (and (<= 0 (+ 2147483648 |ULTIMATE.start_goodB2G1Sink_~data#1|)) (= ~goodB2G1Static~0 0) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648))) [2023-11-12 00:53:38,170 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1595) no Hoare annotation was computed. [2023-11-12 00:53:38,170 INFO L899 garLoopResultBuilder]: For program point L1567-1(lines 1551 1570) no Hoare annotation was computed. [2023-11-12 00:53:38,170 INFO L895 garLoopResultBuilder]: At program point L1563(line 1563) the Hoare annotation is: (and (<= 0 (+ 2147483648 |ULTIMATE.start_goodB2G1Sink_~data#1|)) (= ~goodB2G1Static~0 0) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648))) [2023-11-12 00:53:38,170 INFO L899 garLoopResultBuilder]: For program point L1563-1(line 1563) no Hoare annotation was computed. [2023-11-12 00:53:38,171 INFO L899 garLoopResultBuilder]: For program point L1625(lines 1625 1632) no Hoare annotation was computed. [2023-11-12 00:53:38,171 INFO L899 garLoopResultBuilder]: For program point L1559(lines 1559 1568) no Hoare annotation was computed. [2023-11-12 00:53:38,171 INFO L895 garLoopResultBuilder]: At program point L1555(line 1555) the Hoare annotation is: false [2023-11-12 00:53:38,172 INFO L895 garLoopResultBuilder]: At program point L1617(line 1617) the Hoare annotation is: (and (= ~goodB2G1Static~0 0) (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648))) [2023-11-12 00:53:38,172 INFO L899 garLoopResultBuilder]: For program point L1617-1(lines 1611 1618) no Hoare annotation was computed. [2023-11-12 00:53:38,172 INFO L895 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: (and (= ~goodB2G2Static~0 1) (<= 0 (+ |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483648)) (= ~goodB2G1Static~0 0) (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648))) [2023-11-12 00:53:38,172 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2023-11-12 00:53:38,172 INFO L902 garLoopResultBuilder]: At program point L1630(line 1630) the Hoare annotation is: true [2023-11-12 00:53:38,173 INFO L895 garLoopResultBuilder]: At program point L1597(line 1597) the Hoare annotation is: (and (= ~goodB2G2Static~0 1) (<= 0 (+ |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483648)) (= ~goodB2G1Static~0 0) (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648))) [2023-11-12 00:53:38,173 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1628) no Hoare annotation was computed. [2023-11-12 00:53:38,173 INFO L899 garLoopResultBuilder]: For program point L1630-1(line 1630) no Hoare annotation was computed. [2023-11-12 00:53:38,173 INFO L899 garLoopResultBuilder]: For program point L1597-1(line 1597) no Hoare annotation was computed. [2023-11-12 00:53:38,173 INFO L899 garLoopResultBuilder]: For program point L1593(lines 1593 1602) no Hoare annotation was computed. [2023-11-12 00:53:38,173 INFO L899 garLoopResultBuilder]: For program point L1589(lines 1589 1604) no Hoare annotation was computed. [2023-11-12 00:53:38,174 INFO L895 garLoopResultBuilder]: At program point L1651(line 1651) the Hoare annotation is: (= ~goodB2G1Static~0 0) [2023-11-12 00:53:38,174 INFO L899 garLoopResultBuilder]: For program point L1651-1(line 1651) no Hoare annotation was computed. [2023-11-12 00:53:38,174 INFO L899 garLoopResultBuilder]: For program point L1577(lines 1577 1584) no Hoare annotation was computed. [2023-11-12 00:53:38,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2023-11-12 00:53:38,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-12 00:53:38,174 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1628) no Hoare annotation was computed. [2023-11-12 00:53:38,174 INFO L899 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2023-11-12 00:53:38,175 INFO L899 garLoopResultBuilder]: For program point L1561-1(line 1561) no Hoare annotation was computed. [2023-11-12 00:53:38,175 INFO L899 garLoopResultBuilder]: For program point L1623(lines 1623 1633) no Hoare annotation was computed. [2023-11-12 00:53:38,175 INFO L899 garLoopResultBuilder]: For program point L1553(lines 1553 1569) no Hoare annotation was computed. [2023-11-12 00:53:38,175 INFO L899 garLoopResultBuilder]: For program point L1611(lines 1611 1618) no Hoare annotation was computed. [2023-11-12 00:53:38,175 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-12 00:53:38,175 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1595) no Hoare annotation was computed. [2023-11-12 00:53:38,175 INFO L899 garLoopResultBuilder]: For program point L1628(line 1628) no Hoare annotation was computed. [2023-11-12 00:53:38,175 INFO L899 garLoopResultBuilder]: For program point L1595(line 1595) no Hoare annotation was computed. [2023-11-12 00:53:38,176 INFO L899 garLoopResultBuilder]: For program point L1628-1(line 1628) no Hoare annotation was computed. [2023-11-12 00:53:38,176 INFO L899 garLoopResultBuilder]: For program point L1595-1(line 1595) no Hoare annotation was computed. [2023-11-12 00:53:38,176 INFO L899 garLoopResultBuilder]: For program point L1591(lines 1591 1603) no Hoare annotation was computed. [2023-11-12 00:53:38,176 INFO L902 garLoopResultBuilder]: At program point L1653(line 1653) the Hoare annotation is: true [2023-11-12 00:53:38,176 INFO L899 garLoopResultBuilder]: For program point L1653-1(line 1653) no Hoare annotation was computed. [2023-11-12 00:53:38,176 INFO L895 garLoopResultBuilder]: At program point L1583(line 1583) the Hoare annotation is: (and (= ~goodB2G1Static~0 0) (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648))) [2023-11-12 00:53:38,176 INFO L899 garLoopResultBuilder]: For program point L1583-1(lines 1577 1584) no Hoare annotation was computed. [2023-11-12 00:53:38,180 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:53:38,185 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:53:38,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:53:38 BoogieIcfgContainer [2023-11-12 00:53:38,191 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:53:38,191 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:53:38,191 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:53:38,191 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:53:38,192 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:53:36" (3/4) ... [2023-11-12 00:53:38,194 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-12 00:53:38,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-12 00:53:38,199 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-12 00:53:38,211 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2023-11-12 00:53:38,212 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-12 00:53:38,212 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-12 00:53:38,213 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:53:38,213 INFO L944 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-12 00:53:38,327 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/witness.graphml [2023-11-12 00:53:38,327 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/bin/utaipan-verify-NcY6lQBIFX/witness.yml [2023-11-12 00:53:38,328 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:53:38,328 INFO L158 Benchmark]: Toolchain (without parser) took 4618.84ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 127.6MB in the beginning and 85.8MB in the end (delta: 41.7MB). Peak memory consumption was 74.0MB. Max. memory is 16.1GB. [2023-11-12 00:53:38,329 INFO L158 Benchmark]: CDTParser took 1.24ms. Allocated memory is still 121.6MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:53:38,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1494.72ms. Allocated memory is still 167.8MB. Free memory was 127.3MB in the beginning and 77.1MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2023-11-12 00:53:38,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.93ms. Allocated memory is still 167.8MB. Free memory was 77.1MB in the beginning and 73.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:53:38,330 INFO L158 Benchmark]: Boogie Preprocessor took 62.82ms. Allocated memory is still 167.8MB. Free memory was 73.9MB in the beginning and 135.4MB in the end (delta: -61.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2023-11-12 00:53:38,330 INFO L158 Benchmark]: RCFGBuilder took 632.77ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 135.4MB in the beginning and 155.3MB in the end (delta: -19.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-12 00:53:38,330 INFO L158 Benchmark]: TraceAbstraction took 2166.31ms. Allocated memory is still 201.3MB. Free memory was 155.3MB in the beginning and 91.1MB in the end (delta: 64.2MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2023-11-12 00:53:38,331 INFO L158 Benchmark]: Witness Printer took 136.51ms. Allocated memory is still 201.3MB. Free memory was 91.1MB in the beginning and 85.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-12 00:53:38,333 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.24ms. Allocated memory is still 121.6MB. Free memory is still 88.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1494.72ms. Allocated memory is still 167.8MB. Free memory was 127.3MB in the beginning and 77.1MB in the end (delta: 50.3MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.93ms. Allocated memory is still 167.8MB. Free memory was 77.1MB in the beginning and 73.9MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.82ms. Allocated memory is still 167.8MB. Free memory was 73.9MB in the beginning and 135.4MB in the end (delta: -61.6MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * RCFGBuilder took 632.77ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 135.4MB in the beginning and 155.3MB in the end (delta: -19.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * TraceAbstraction took 2166.31ms. Allocated memory is still 201.3MB. Free memory was 155.3MB in the beginning and 91.1MB in the end (delta: 64.2MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 136.51ms. Allocated memory is still 201.3MB. Free memory was 91.1MB in the beginning and 85.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. 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: 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: 1595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1595]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1628]: 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, 45 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.1s, OverallIterations: 7, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 102 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 628 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 365 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 127 IncrementalHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 263 mSDtfsCounter, 127 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 23 PreInvPairs, 26 NumberOfFragments, 88 HoareAnnotationTreeSize, 23 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 158 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 14/14 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-12 00:53:38,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e0e6c28-b4a4-4181-8f0b-029e65a6fbcc/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