./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c --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_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/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_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/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_26b1dfe2-156e-4470-8a7c-8120fa2b5571/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 475c55af8223c9a32959cab18313111543780f4e37aae19089bc5e981127ec42 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:11:56,594 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:11:56,726 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 04:11:56,733 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:11:56,734 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:11:56,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:11:56,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:11:56,766 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:11:56,767 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:11:56,773 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:11:56,773 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:11:56,775 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:11:56,776 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:11:56,778 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:11:56,778 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:11:56,779 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:11:56,779 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:11:56,780 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:11:56,780 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:11:56,781 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:11:56,781 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:11:56,782 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:11:56,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:11:56,784 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:11:56,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:11:56,785 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:11:56,785 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:11:56,786 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:11:56,786 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:11:56,787 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 04:11:56,788 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 04:11:56,789 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:11:56,789 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:11:56,789 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:11:56,790 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:11:56,790 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:11:56,790 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:11:56,791 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:11:56,791 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:11:56,791 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:11:56,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:11:56,793 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:11:56,793 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:11:56,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:11:56,794 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_26b1dfe2-156e-4470-8a7c-8120fa2b5571/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c55af8223c9a32959cab18313111543780f4e37aae19089bc5e981127ec42 [2023-11-19 04:11:57,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:11:57,192 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:11:57,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:11:57,197 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:11:57,197 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:11:57,199 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2023-11-19 04:12:00,370 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:12:00,609 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:12:00,609 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/sv-benchmarks/c/termination-crafted-lit/cstrcspn.c [2023-11-19 04:12:00,617 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/data/0f43bde04/788c9c70fb004a649aad33e554aad78f/FLAGc5ee2246a [2023-11-19 04:12:00,632 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/data/0f43bde04/788c9c70fb004a649aad33e554aad78f [2023-11-19 04:12:00,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:12:00,637 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:12:00,638 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:00,639 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:12:00,644 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:12:00,645 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517c9b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00, skipping insertion in model container [2023-11-19 04:12:00,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,674 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:12:00,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:00,846 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:12:00,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:00,876 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:12:00,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00 WrapperNode [2023-11-19 04:12:00,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:00,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:00,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:12:00,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:12:00,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,916 INFO L138 Inliner]: procedures = 11, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2023-11-19 04:12:00,916 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:00,917 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:12:00,917 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:12:00,917 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:12:00,926 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,940 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,941 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,942 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,945 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:12:00,946 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:12:00,946 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:12:00,947 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:12:00,948 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (1/1) ... [2023-11-19 04:12:00,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:00,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:01,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:12:01,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:12:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:12:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2023-11-19 04:12:01,050 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2023-11-19 04:12:01,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:12:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:12:01,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:12:01,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:12:01,148 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:12:01,150 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:12:01,457 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:12:01,524 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:12:01,524 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:12:01,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:01 BoogieIcfgContainer [2023-11-19 04:12:01,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:12:01,535 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:12:01,536 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:12:01,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:12:01,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:12:00" (1/3) ... [2023-11-19 04:12:01,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197a029e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:01, skipping insertion in model container [2023-11-19 04:12:01,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:00" (2/3) ... [2023-11-19 04:12:01,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@197a029e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:12:01, skipping insertion in model container [2023-11-19 04:12:01,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:01" (3/3) ... [2023-11-19 04:12:01,543 INFO L112 eAbstractionObserver]: Analyzing ICFG cstrcspn.c [2023-11-19 04:12:01,565 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:12:01,565 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-19 04:12:01,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:12:01,630 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;@74dd3dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:12:01,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-19 04:12:01,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 15 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:12:01,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 04:12:01,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:01,647 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 04:12:01,648 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:12:01,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:01,657 INFO L85 PathProgramCache]: Analyzing trace with hash 3072790, now seen corresponding path program 1 times [2023-11-19 04:12:01,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:01,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179709684] [2023-11-19 04:12:01,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:01,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:01,939 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 04:12:01,940 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:01,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179709684] [2023-11-19 04:12:01,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179709684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:01,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:01,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:12:01,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088398071] [2023-11-19 04:12:01,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:01,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:12:01,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:01,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:12:01,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:01,981 INFO L87 Difference]: Start difference. First operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 15 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:12:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:02,028 INFO L93 Difference]: Finished difference Result 28 states and 37 transitions. [2023-11-19 04:12:02,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:12:02,031 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 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 04:12:02,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:02,040 INFO L225 Difference]: With dead ends: 28 [2023-11-19 04:12:02,040 INFO L226 Difference]: Without dead ends: 8 [2023-11-19 04:12:02,044 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 04:12:02,048 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 26 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 04:12:02,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 26 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:12:02,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-11-19 04:12:02,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-11-19 04:12:02,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 4 states have (on average 1.25) internal successors, (5), 5 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 04:12:02,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-19 04:12:02,135 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-19 04:12:02,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:02,136 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-19 04:12:02,136 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:12:02,136 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-19 04:12:02,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 04:12:02,137 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:12:02,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 04:12:02,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:12:02,138 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2023-11-19 04:12:02,138 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:12:02,138 INFO L85 PathProgramCache]: Analyzing trace with hash 95256531, now seen corresponding path program 1 times [2023-11-19 04:12:02,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:12:02,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463647182] [2023-11-19 04:12:02,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:12:02,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:12:02,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:12:02,233 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 04:12:02,233 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:12:02,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463647182] [2023-11-19 04:12:02,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463647182] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:12:02,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:12:02,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 04:12:02,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18851853] [2023-11-19 04:12:02,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:12:02,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:12:02,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:12:02,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:12:02,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:12:02,237 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:12:02,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:12:02,248 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2023-11-19 04:12:02,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:12:02,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-19 04:12:02,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:12:02,250 INFO L225 Difference]: With dead ends: 8 [2023-11-19 04:12:02,250 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 04:12:02,250 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 04:12:02,252 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 04:12:02,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 6 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 04:12:02,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 04:12:02,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 04:12:02,255 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 04:12:02,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 04:12:02,256 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2023-11-19 04:12:02,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:12:02,256 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 04:12:02,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 04:12:02,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 04:12:02,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:12:02,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2023-11-19 04:12:02,260 INFO L805 garLoopResultBuilder]: Registering result SAFE for location build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2023-11-19 04:12:02,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:12:02,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-19 04:12:02,279 INFO L899 garLoopResultBuilder]: For program point L18(line 18) no Hoare annotation was computed. [2023-11-19 04:12:02,279 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2023-11-19 04:12:02,280 INFO L899 garLoopResultBuilder]: For program point build_nondet_StringErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2023-11-19 04:12:02,280 INFO L899 garLoopResultBuilder]: For program point build_nondet_StringErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2023-11-19 04:12:02,280 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 12 20) the Hoare annotation is: true [2023-11-19 04:12:02,280 INFO L899 garLoopResultBuilder]: For program point build_nondet_StringEXIT(lines 12 20) no Hoare annotation was computed. [2023-11-19 04:12:02,281 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-19 04:12:02,281 INFO L899 garLoopResultBuilder]: For program point L33-3(lines 33 34) no Hoare annotation was computed. [2023-11-19 04:12:02,281 INFO L902 garLoopResultBuilder]: At program point L33-5(lines 33 34) the Hoare annotation is: true [2023-11-19 04:12:02,281 INFO L899 garLoopResultBuilder]: For program point L33-6(lines 33 34) no Hoare annotation was computed. [2023-11-19 04:12:02,282 INFO L902 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: true [2023-11-19 04:12:02,282 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-19 04:12:02,282 INFO L902 garLoopResultBuilder]: At program point L42-1(line 42) the Hoare annotation is: true [2023-11-19 04:12:02,282 INFO L899 garLoopResultBuilder]: For program point L42-2(line 42) no Hoare annotation was computed. [2023-11-19 04:12:02,282 INFO L899 garLoopResultBuilder]: For program point cstrcspn_returnLabel#1(lines 25 39) no Hoare annotation was computed. [2023-11-19 04:12:02,283 INFO L899 garLoopResultBuilder]: For program point L30-1(lines 30 37) no Hoare annotation was computed. [2023-11-19 04:12:02,283 INFO L902 garLoopResultBuilder]: At program point L30-4(lines 30 37) the Hoare annotation is: true [2023-11-19 04:12:02,283 INFO L899 garLoopResultBuilder]: For program point L30-5(lines 30 37) no Hoare annotation was computed. [2023-11-19 04:12:02,283 INFO L899 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2023-11-19 04:12:02,287 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-19 04:12:02,290 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 04:12:02,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:12:02 BoogieIcfgContainer [2023-11-19 04:12:02,299 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 04:12:02,300 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:12:02,300 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:12:02,301 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:12:02,301 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:12:01" (3/4) ... [2023-11-19 04:12:02,304 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:12:02,307 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2023-11-19 04:12:02,312 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 04:12:02,312 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 04:12:02,313 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 04:12:02,313 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:12:02,409 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 04:12:02,409 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/witness.yml [2023-11-19 04:12:02,410 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:12:02,410 INFO L158 Benchmark]: Toolchain (without parser) took 1773.74ms. Allocated memory is still 132.1MB. Free memory was 95.3MB in the beginning and 87.5MB in the end (delta: 7.8MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-11-19 04:12:02,411 INFO L158 Benchmark]: CDTParser took 1.49ms. Allocated memory is still 132.1MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:02,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 239.06ms. Allocated memory is still 132.1MB. Free memory was 95.0MB in the beginning and 84.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:12:02,411 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.36ms. Allocated memory is still 132.1MB. Free memory was 84.5MB in the beginning and 83.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:02,412 INFO L158 Benchmark]: Boogie Preprocessor took 28.20ms. Allocated memory is still 132.1MB. Free memory was 83.2MB in the beginning and 81.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:12:02,412 INFO L158 Benchmark]: RCFGBuilder took 586.31ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 67.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:12:02,413 INFO L158 Benchmark]: TraceAbstraction took 764.22ms. Allocated memory is still 132.1MB. Free memory was 66.8MB in the beginning and 92.4MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:12:02,413 INFO L158 Benchmark]: Witness Printer took 109.65ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 87.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:12:02,415 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.49ms. Allocated memory is still 132.1MB. Free memory is still 104.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 239.06ms. Allocated memory is still 132.1MB. Free memory was 95.0MB in the beginning and 84.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.36ms. Allocated memory is still 132.1MB. Free memory was 84.5MB in the beginning and 83.2MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.20ms. Allocated memory is still 132.1MB. Free memory was 83.2MB in the beginning and 81.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 586.31ms. Allocated memory is still 132.1MB. Free memory was 81.5MB in the beginning and 67.2MB in the end (delta: 14.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 764.22ms. Allocated memory is still 132.1MB. Free memory was 66.8MB in the beginning and 92.4MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 109.65ms. Allocated memory is still 132.1MB. Free memory was 92.4MB in the beginning and 87.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 5 LocationsWithAnnotation, 6 PreInvPairs, 8 NumberOfFragments, 5 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 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: 33]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-19 04:12:02,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26b1dfe2-156e-4470-8a7c-8120fa2b5571/bin/utaipan-verify-t7M7D8N6sZ/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