./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-dietlibc/strrchr_short.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-dietlibc/strrchr_short.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5 --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 5714449da9967bbd2918d4305e52dc9c1161024d975984886640d613abe881d1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:47:51,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:47:51,707 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-21 19:47:51,716 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:47:51,717 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:47:51,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:47:51,759 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:47:51,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:47:51,760 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:47:51,765 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:47:51,766 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:47:51,767 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:47:51,768 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:47:51,769 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:47:51,770 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:47:51,770 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:47:51,771 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:47:51,771 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:47:51,772 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:47:51,772 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:47:51,774 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:47:51,775 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:47:51,776 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:47:51,777 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:47:51,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:47:51,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:47:51,778 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:47:51,778 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:47:51,779 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:47:51,779 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 19:47:51,780 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 19:47:51,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:47:51,781 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:47:51,781 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:47:51,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:47:51,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:47:51,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:47:51,782 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:47:51,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:47:51,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:47:51,783 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:47:51,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:47:51,784 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:47:51,784 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:47:51,785 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:47:51,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:47:51,785 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_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5714449da9967bbd2918d4305e52dc9c1161024d975984886640d613abe881d1 [2023-11-21 19:47:52,101 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:47:52,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:47:52,137 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:47:52,138 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:47:52,140 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:47:52,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/termination-dietlibc/strrchr_short.i [2023-11-21 19:47:55,343 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:47:55,763 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:47:55,765 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/sv-benchmarks/c/termination-dietlibc/strrchr_short.i [2023-11-21 19:47:55,782 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/data/61eb79487/eee9d9f613444222993c5545a75f8e68/FLAGb0f57aca0 [2023-11-21 19:47:55,801 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/data/61eb79487/eee9d9f613444222993c5545a75f8e68 [2023-11-21 19:47:55,806 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:47:55,808 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:47:55,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:47:55,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:47:55,820 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:47:55,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:47:55" (1/1) ... [2023-11-21 19:47:55,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338011cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:55, skipping insertion in model container [2023-11-21 19:47:55,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:47:55" (1/1) ... [2023-11-21 19:47:55,889 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:47:56,260 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:47:56,275 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:47:56,342 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:47:56,373 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:47:56,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56 WrapperNode [2023-11-21 19:47:56,374 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:47:56,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:47:56,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:47:56,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:47:56,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,416 INFO L138 Inliner]: procedures = 113, calls = 9, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2023-11-21 19:47:56,417 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:47:56,418 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:47:56,418 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:47:56,419 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:47:56,426 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,430 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,441 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,444 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,460 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:47:56,466 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:47:56,466 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:47:56,467 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:47:56,468 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (1/1) ... [2023-11-21 19:47:56,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:47:56,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:47:56,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:47:56,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:47:56,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:47:56,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:47:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:47:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:47:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:47:56,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:47:56,645 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:47:56,647 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:47:56,810 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:47:56,857 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:47:56,857 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:47:56,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:56 BoogieIcfgContainer [2023-11-21 19:47:56,859 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:47:56,862 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:47:56,862 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:47:56,866 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:47:56,866 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:47:55" (1/3) ... [2023-11-21 19:47:56,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5b3e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:47:56, skipping insertion in model container [2023-11-21 19:47:56,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:56" (2/3) ... [2023-11-21 19:47:56,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5b3e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:47:56, skipping insertion in model container [2023-11-21 19:47:56,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:56" (3/3) ... [2023-11-21 19:47:56,869 INFO L112 eAbstractionObserver]: Analyzing ICFG strrchr_short.i [2023-11-21 19:47:56,886 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:47:56,886 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 19:47:56,930 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:47:56,936 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;@9136275, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:56,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 19:47:56,942 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) [2023-11-21 19:47:56,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 19:47:56,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:47:56,949 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 19:47:56,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 19:47:56,955 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:56,956 INFO L85 PathProgramCache]: Analyzing trace with hash 70378, now seen corresponding path program 1 times [2023-11-21 19:47:56,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:47:56,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128606383] [2023-11-21 19:47:56,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:56,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:57,254 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:47:57,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128606383] [2023-11-21 19:47:57,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128606383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:57,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:57,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 19:47:57,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516804319] [2023-11-21 19:47:57,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:57,267 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:57,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:47:57,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:57,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:57,316 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) [2023-11-21 19:47:57,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:47:57,376 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2023-11-21 19:47:57,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:57,379 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 [2023-11-21 19:47:57,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:47:57,388 INFO L225 Difference]: With dead ends: 15 [2023-11-21 19:47:57,388 INFO L226 Difference]: Without dead ends: 5 [2023-11-21 19:47:57,391 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 [2023-11-21 19:47:57,398 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-21 19:47:57,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-21 19:47:57,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2023-11-21 19:47:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2023-11-21 19:47:57,433 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) [2023-11-21 19:47:57,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2023-11-21 19:47:57,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 3 [2023-11-21 19:47:57,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:47:57,436 INFO L495 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2023-11-21 19:47:57,437 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) [2023-11-21 19:47:57,437 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2023-11-21 19:47:57,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 19:47:57,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:47:57,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 19:47:57,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:47:57,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-21 19:47:57,440 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:57,441 INFO L85 PathProgramCache]: Analyzing trace with hash 2181759, now seen corresponding path program 1 times [2023-11-21 19:47:57,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:47:57,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67133912] [2023-11-21 19:47:57,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:57,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:57,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:57,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:47:57,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67133912] [2023-11-21 19:47:57,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67133912] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:57,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:57,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-21 19:47:57,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986298476] [2023-11-21 19:47:57,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:57,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:47:57,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:47:57,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:47:57,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:47:57,545 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) [2023-11-21 19:47:57,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:47:57,572 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2023-11-21 19:47:57,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:47:57,573 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 [2023-11-21 19:47:57,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:47:57,574 INFO L225 Difference]: With dead ends: 5 [2023-11-21 19:47:57,574 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 19:47:57,574 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 [2023-11-21 19:47:57,576 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 [2023-11-21 19:47:57,577 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] [2023-11-21 19:47:57,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 19:47:57,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 19:47:57,579 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) [2023-11-21 19:47:57,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 19:47:57,579 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2023-11-21 19:47:57,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:47:57,580 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 19:47:57,580 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) [2023-11-21 19:47:57,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 19:47:57,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 19:47:57,583 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-21 19:47:57,584 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-21 19:47:57,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 19:47:57,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 19:47:57,597 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2023-11-21 19:47:57,597 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 19:47:57,597 INFO L895 garLoopResultBuilder]: At program point L510-2(lines 510 512) the Hoare annotation is: (<= 1 |ULTIMATE.start_main_~in_len~0#1|) [2023-11-21 19:47:57,598 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 19:47:57,598 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 515 522) no Hoare annotation was computed. [2023-11-21 19:47:57,598 INFO L899 garLoopResultBuilder]: For program point L519(line 519) no Hoare annotation was computed. [2023-11-21 19:47:57,598 INFO L899 garLoopResultBuilder]: For program point L519-1(line 519) no Hoare annotation was computed. [2023-11-21 19:47:57,598 INFO L899 garLoopResultBuilder]: For program point L517(line 517) no Hoare annotation was computed. [2023-11-21 19:47:57,599 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 519) no Hoare annotation was computed. [2023-11-21 19:47:57,599 INFO L899 garLoopResultBuilder]: For program point L511-3(line 511) no Hoare annotation was computed. [2023-11-21 19:47:57,599 INFO L899 garLoopResultBuilder]: For program point strrchr_returnLabel#1(lines 506 514) no Hoare annotation was computed. [2023-11-21 19:47:57,602 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 19:47:57,605 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:47:57,622 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~in_len~0 [2023-11-21 19:47:57,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:47:57 BoogieIcfgContainer [2023-11-21 19:47:57,624 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:47:57,625 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:47:57,625 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:47:57,625 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:47:57,626 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:56" (3/4) ... [2023-11-21 19:47:57,628 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 19:47:57,635 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-21 19:47:57,636 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 19:47:57,636 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 19:47:57,636 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 19:47:57,726 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/witness.graphml [2023-11-21 19:47:57,726 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/witness.yml [2023-11-21 19:47:57,726 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:47:57,727 INFO L158 Benchmark]: Toolchain (without parser) took 1919.43ms. Allocated memory is still 180.4MB. Free memory was 149.2MB in the beginning and 143.4MB in the end (delta: 5.9MB). Peak memory consumption was 7.2MB. Max. memory is 16.1GB. [2023-11-21 19:47:57,727 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:47:57,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.24ms. Allocated memory is still 180.4MB. Free memory was 148.8MB in the beginning and 133.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-21 19:47:57,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.35ms. Allocated memory is still 180.4MB. Free memory was 133.0MB in the beginning and 131.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:47:57,729 INFO L158 Benchmark]: Boogie Preprocessor took 47.63ms. Allocated memory is still 180.4MB. Free memory was 131.4MB in the beginning and 130.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:47:57,729 INFO L158 Benchmark]: RCFGBuilder took 393.17ms. Allocated memory is still 180.4MB. Free memory was 129.7MB in the beginning and 117.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 19:47:57,729 INFO L158 Benchmark]: TraceAbstraction took 762.07ms. Allocated memory is still 180.4MB. Free memory was 116.7MB in the beginning and 147.6MB in the end (delta: -30.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:47:57,730 INFO L158 Benchmark]: Witness Printer took 101.67ms. Allocated memory is still 180.4MB. Free memory was 147.6MB in the beginning and 143.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 19:47:57,732 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 121.6MB. Free memory is still 82.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.24ms. Allocated memory is still 180.4MB. Free memory was 148.8MB in the beginning and 133.0MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.35ms. Allocated memory is still 180.4MB. Free memory was 133.0MB in the beginning and 131.4MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.63ms. Allocated memory is still 180.4MB. Free memory was 131.4MB in the beginning and 130.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 393.17ms. Allocated memory is still 180.4MB. Free memory was 129.7MB in the beginning and 117.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 762.07ms. Allocated memory is still 180.4MB. Free memory was 116.7MB in the beginning and 147.6MB in the end (delta: -30.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 101.67ms. Allocated memory is still 180.4MB. Free memory was 147.6MB in the beginning and 143.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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: 519]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 519]: 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: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 14 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, 0.1s SatisfiabilityAnalysisTime, 0.2s 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: 510]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-21 19:47:57,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a10a8f02-31fc-4d18-b307-ce6f1d1087d5/bin/utaipan-verify-QoSU8krkJ5/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