./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ --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 aa3550415adcb60cd2e10382a8cad250e37bc74a995d2e6aefcb0c0e067c66dc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:54:32,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:54:32,579 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 04:54:32,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:54:32,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:54:32,611 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:54:32,612 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:54:32,613 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:54:32,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:54:32,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:54:32,615 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:54:32,616 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:54:32,616 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:54:32,617 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:54:32,617 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:54:32,618 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:54:32,618 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:54:32,619 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:54:32,620 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:54:32,620 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:54:32,621 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:54:32,622 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:54:32,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:54:32,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:54:32,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:54:32,624 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:54:32,625 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:54:32,625 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:54:32,626 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:54:32,626 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:54:32,627 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:54:32,627 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:54:32,628 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:54:32,628 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:54:32,629 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:54:32,629 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:32,630 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:54:32,630 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:54:32,630 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:54:32,631 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:54:32,631 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:54:32,631 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:54:32,632 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:54:32,632 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:54:32,632 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_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa3550415adcb60cd2e10382a8cad250e37bc74a995d2e6aefcb0c0e067c66dc [2023-11-19 04:54:32,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:54:32,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:54:32,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:54:32,990 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:54:32,990 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:54:32,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/termination-dietlibc/wcsrchr.i [2023-11-19 04:54:36,053 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:54:36,324 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:54:36,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/sv-benchmarks/c/termination-dietlibc/wcsrchr.i [2023-11-19 04:54:36,341 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/data/e50fff218/a024f5dd4c814e1390dafa3beec3ce28/FLAG825bac1c5 [2023-11-19 04:54:36,356 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/data/e50fff218/a024f5dd4c814e1390dafa3beec3ce28 [2023-11-19 04:54:36,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:54:36,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:54:36,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:36,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:54:36,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:54:36,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12547767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36, skipping insertion in model container [2023-11-19 04:54:36,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,427 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:54:36,748 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:36,762 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:54:36,829 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:54:36,865 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:54:36,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36 WrapperNode [2023-11-19 04:54:36,866 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:54:36,867 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:36,867 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:54:36,867 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:54:36,877 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,933 INFO L138 Inliner]: procedures = 113, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2023-11-19 04:54:36,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:54:36,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:54:36,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:54:36,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:54:36,945 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,967 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,970 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,972 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,975 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:54:36,987 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:54:36,987 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:54:36,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:54:36,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (1/1) ... [2023-11-19 04:54:36,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:54:37,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:54:37,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:54:37,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:54:37,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:54:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:54:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:54:37,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:54:37,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:54:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:54:37,203 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:54:37,206 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:54:37,364 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:54:37,407 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:54:37,407 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 04:54:37,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:37 BoogieIcfgContainer [2023-11-19 04:54:37,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:54:37,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:54:37,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:54:37,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:54:37,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:54:36" (1/3) ... [2023-11-19 04:54:37,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508fa8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:37, skipping insertion in model container [2023-11-19 04:54:37,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:54:36" (2/3) ... [2023-11-19 04:54:37,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@508fa8fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:54:37, skipping insertion in model container [2023-11-19 04:54:37,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:37" (3/3) ... [2023-11-19 04:54:37,423 INFO L112 eAbstractionObserver]: Analyzing ICFG wcsrchr.i [2023-11-19 04:54:37,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:54:37,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:54:37,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:54:37,494 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;@64288b93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:54:37,494 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:54:37,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-19 04:54:37,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:54:37,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:37,505 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 04:54:37,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:54:37,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:37,511 INFO L85 PathProgramCache]: Analyzing trace with hash 65573, now seen corresponding path program 1 times [2023-11-19 04:54:37,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:37,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750682923] [2023-11-19 04:54:37,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:37,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:37,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:54:37,716 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:37,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750682923] [2023-11-19 04:54:37,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750682923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:37,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:37,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:54:37,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610228071] [2023-11-19 04:54:37,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:37,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:54:37,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:54:37,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:54:37,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:37,765 INFO L87 Difference]: Start difference. First operand has 11 states, 8 states have (on average 1.625) internal successors, (13), 10 states have internal predecessors, (13), 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) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-19 04:54:37,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:37,799 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-19 04:54:37,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:54:37,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) Word has length 3 [2023-11-19 04:54:37,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:37,810 INFO L225 Difference]: With dead ends: 15 [2023-11-19 04:54:37,819 INFO L226 Difference]: Without dead ends: 5 [2023-11-19 04:54:37,822 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 [2023-11-19 04:54:37,826 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4 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 [2023-11-19 04:54:37,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:54:37,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2023-11-19 04:54:37,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-11-19 04:54:37,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 4 states have internal predecessors, (4), 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) [2023-11-19 04:54:37,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2023-11-19 04:54:37,856 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2023-11-19 04:54:37,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:37,856 INFO L495 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2023-11-19 04:54:37,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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) [2023-11-19 04:54:37,857 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2023-11-19 04:54:37,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:54:37,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:54:37,857 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:54:37,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:54:37,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:54:37,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:54:37,859 INFO L85 PathProgramCache]: Analyzing trace with hash 2032804, now seen corresponding path program 1 times [2023-11-19 04:54:37,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:54:37,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013176446] [2023-11-19 04:54:37,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:54:37,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:54:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:54:37,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:54:37,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:54:37,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013176446] [2023-11-19 04:54:37,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013176446] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:54:37,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:54:37,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-19 04:54:37,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508252258] [2023-11-19 04:54:37,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:54:37,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:54:37,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:54:37,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:54:37,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:37,930 INFO L87 Difference]: Start difference. First operand 5 states and 4 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-19 04:54:37,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:54:37,946 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2023-11-19 04:54:37,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:54:37,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) Word has length 4 [2023-11-19 04:54:37,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:54:37,948 INFO L225 Difference]: With dead ends: 5 [2023-11-19 04:54:37,948 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:54:37,948 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:54:37,950 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:54:37,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:54:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:54:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:54:37,952 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) [2023-11-19 04:54:37,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:54:37,952 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2023-11-19 04:54:37,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:54:37,953 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:54:37,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-19 04:54:37,953 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:54:37,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:54:37,956 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:54:37,957 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:54:37,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:54:37,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:54:37,969 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 517) no Hoare annotation was computed. [2023-11-19 04:54:37,970 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:54:37,970 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 508 510) no Hoare annotation was computed. [2023-11-19 04:54:37,970 INFO L895 garLoopResultBuilder]: At program point L508-4(lines 508 510) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~in_len~0#1|) [2023-11-19 04:54:37,971 INFO L899 garLoopResultBuilder]: For program point L508-5(lines 508 510) no Hoare annotation was computed. [2023-11-19 04:54:37,971 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:54:37,971 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 513 520) no Hoare annotation was computed. [2023-11-19 04:54:37,971 INFO L899 garLoopResultBuilder]: For program point L517(line 517) no Hoare annotation was computed. [2023-11-19 04:54:37,991 INFO L899 garLoopResultBuilder]: For program point L517-1(line 517) no Hoare annotation was computed. [2023-11-19 04:54:37,991 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2023-11-19 04:54:37,991 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 517) no Hoare annotation was computed. [2023-11-19 04:54:37,996 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:54:38,009 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:54:38,020 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~in_len~0 [2023-11-19 04:54:38,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:54:38 BoogieIcfgContainer [2023-11-19 04:54:38,022 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:54:38,022 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:54:38,023 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:54:38,023 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:54:38,023 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:54:37" (3/4) ... [2023-11-19 04:54:38,025 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:54:38,032 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 04:54:38,033 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 04:54:38,033 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 04:54:38,033 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:54:38,133 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:54:38,134 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:54:38,134 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:54:38,135 INFO L158 Benchmark]: Toolchain (without parser) took 1774.48ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 127.6MB in the end (delta: -6.8MB). Peak memory consumption was 493.2kB. Max. memory is 16.1GB. [2023-11-19 04:54:38,135 INFO L158 Benchmark]: CDTParser took 1.40ms. Allocated memory is still 161.5MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:54:38,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 504.10ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 105.0MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:54:38,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.64ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 103.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:54:38,136 INFO L158 Benchmark]: Boogie Preprocessor took 51.49ms. Allocated memory is still 161.5MB. Free memory was 103.1MB in the beginning and 101.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:54:38,137 INFO L158 Benchmark]: RCFGBuilder took 425.56ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 89.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:54:38,137 INFO L158 Benchmark]: TraceAbstraction took 606.52ms. Allocated memory is still 161.5MB. Free memory was 88.4MB in the beginning and 129.6MB in the end (delta: -41.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-11-19 04:54:38,138 INFO L158 Benchmark]: Witness Printer took 111.67ms. Allocated memory is still 161.5MB. Free memory was 129.5MB in the beginning and 127.6MB in the end (delta: 2.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2023-11-19 04:54:38,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.40ms. Allocated memory is still 161.5MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 504.10ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 105.0MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.64ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 103.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.49ms. Allocated memory is still 161.5MB. Free memory was 103.1MB in the beginning and 101.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 425.56ms. Allocated memory is still 161.5MB. Free memory was 101.5MB in the beginning and 89.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 606.52ms. Allocated memory is still 161.5MB. Free memory was 88.4MB in the beginning and 129.6MB in the end (delta: -41.2MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. * Witness Printer took 111.67ms. Allocated memory is still 161.5MB. Free memory was 129.5MB in the beginning and 127.6MB in the end (delta: 2.0MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~in_len~0 * 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: 517]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 517]: 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 1 procedures, 11 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 15 IncrementalHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 15 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 3 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-19 04:54:38,174 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1ba4f853-6ee2-43a1-8a1d-81aca6370186/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE