./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.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_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/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_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/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_3f43a693-5419-4d01-8679-7f48435aac72/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 53d499bdc434a02195836153e775e269a2cf419a7e6607f1c0b4e200b110c82e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:04:27,057 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:04:27,138 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Overflow-64bit-Taipan_Default.epf [2023-11-19 05:04:27,145 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:04:27,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:04:27,175 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:04:27,176 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:04:27,177 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:04:27,178 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:04:27,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:04:27,179 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:04:27,180 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:04:27,180 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:04:27,181 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:04:27,182 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:04:27,182 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:04:27,183 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:04:27,184 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:04:27,184 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:04:27,185 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:04:27,186 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:04:27,186 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:04:27,187 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:04:27,188 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:04:27,188 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:04:27,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:04:27,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:04:27,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:04:27,191 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:04:27,191 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 05:04:27,192 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 05:04:27,192 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:04:27,193 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:04:27,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:04:27,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:04:27,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:04:27,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:04:27,195 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:04:27,195 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:04:27,195 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:04:27,196 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:04:27,196 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:04:27,197 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:04:27,197 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:04:27,197 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_3f43a693-5419-4d01-8679-7f48435aac72/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53d499bdc434a02195836153e775e269a2cf419a7e6607f1c0b4e200b110c82e [2023-11-19 05:04:27,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:04:27,484 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:04:27,487 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:04:27,489 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:04:27,490 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:04:27,491 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c [2023-11-19 05:04:30,598 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:04:30,811 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:04:30,812 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/sv-benchmarks/c/termination-crafted-lit/ColonSipma-TACAS2001-Fig1.c [2023-11-19 05:04:30,820 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/data/7b9e360a7/cf3541709e3d4747970958385071baad/FLAG5c9d931cd [2023-11-19 05:04:30,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/data/7b9e360a7/cf3541709e3d4747970958385071baad [2023-11-19 05:04:30,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:04:30,845 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:04:30,850 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:04:30,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:04:30,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:04:30,864 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:30" (1/1) ... [2023-11-19 05:04:30,865 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9cf5ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:30, skipping insertion in model container [2023-11-19 05:04:30,866 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:04:30" (1/1) ... [2023-11-19 05:04:30,886 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:04:31,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:04:31,082 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:04:31,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:04:31,110 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:04:31,111 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31 WrapperNode [2023-11-19 05:04:31,111 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:04:31,113 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:04:31,113 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:04:31,113 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:04:31,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,125 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,144 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2023-11-19 05:04:31,144 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:04:31,145 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:04:31,145 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:04:31,145 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:04:31,153 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,161 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:04:31,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:04:31,165 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:04:31,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:04:31,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (1/1) ... [2023-11-19 05:04:31,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:04:31,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:04:31,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:04:31,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:04:31,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:04:31,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:04:31,384 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:04:31,387 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:04:31,565 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:04:31,594 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:04:31,595 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 05:04:31,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:31 BoogieIcfgContainer [2023-11-19 05:04:31,600 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:04:31,604 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:04:31,604 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:04:31,608 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:04:31,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:04:30" (1/3) ... [2023-11-19 05:04:31,610 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caa1c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:31, skipping insertion in model container [2023-11-19 05:04:31,610 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:04:31" (2/3) ... [2023-11-19 05:04:31,611 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7caa1c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:04:31, skipping insertion in model container [2023-11-19 05:04:31,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:31" (3/3) ... [2023-11-19 05:04:31,612 INFO L112 eAbstractionObserver]: Analyzing ICFG ColonSipma-TACAS2001-Fig1.c [2023-11-19 05:04:31,637 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:04:31,637 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-11-19 05:04:31,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:04:31,729 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;@2a7ef0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:04:31,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-19 05:04:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 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 05:04:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 05:04:31,743 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:31,745 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-19 05:04:31,746 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:04:31,752 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:31,753 INFO L85 PathProgramCache]: Analyzing trace with hash 57052, now seen corresponding path program 1 times [2023-11-19 05:04:31,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:04:31,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546148113] [2023-11-19 05:04:31,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:31,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:04:31,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:04:32,028 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 05:04:32,030 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:04:32,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546148113] [2023-11-19 05:04:32,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546148113] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:04:32,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:04:32,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:04:32,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171106389] [2023-11-19 05:04:32,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:04:32,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 05:04:32,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:04:32,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 05:04:32,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:04:32,077 INFO L87 Difference]: Start difference. First operand has 11 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 10 states have internal predecessors, (11), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:32,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:04:32,133 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2023-11-19 05:04:32,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 05:04:32,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-19 05:04:32,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:04:32,145 INFO L225 Difference]: With dead ends: 20 [2023-11-19 05:04:32,146 INFO L226 Difference]: Without dead ends: 18 [2023-11-19 05:04:32,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 05:04:32,153 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:04:32,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 15 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 05:04:32,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-11-19 05:04:32,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 12. [2023-11-19 05:04:32,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.5) internal successors, (12), 11 states have internal predecessors, (12), 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 05:04:32,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-11-19 05:04:32,193 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 3 [2023-11-19 05:04:32,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:04:32,193 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2023-11-19 05:04:32,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:32,194 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-11-19 05:04:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 05:04:32,195 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:32,195 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 05:04:32,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:04:32,196 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:04:32,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:32,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1768657, now seen corresponding path program 1 times [2023-11-19 05:04:32,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:04:32,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943401883] [2023-11-19 05:04:32,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:32,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:04:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:04:32,287 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 05:04:32,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:04:32,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943401883] [2023-11-19 05:04:32,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943401883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:04:32,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:04:32,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 05:04:32,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694275788] [2023-11-19 05:04:32,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:04:32,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:04:32,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:04:32,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:04:32,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:04:32,293 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:04:32,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:04:32,318 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2023-11-19 05:04:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:04:32,319 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 05:04:32,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:04:32,320 INFO L225 Difference]: With dead ends: 12 [2023-11-19 05:04:32,320 INFO L226 Difference]: Without dead ends: 11 [2023-11-19 05:04:32,321 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 05:04:32,323 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 6 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 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 05:04:32,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 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 05:04:32,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2023-11-19 05:04:32,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2023-11-19 05:04:32,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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 05:04:32,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-19 05:04:32,329 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2023-11-19 05:04:32,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:04:32,329 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-19 05:04:32,330 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), 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 05:04:32,330 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-19 05:04:32,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 05:04:32,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:04:32,331 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-19 05:04:32,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:04:32,337 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-11-19 05:04:32,337 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:04:32,338 INFO L85 PathProgramCache]: Analyzing trace with hash 54828414, now seen corresponding path program 1 times [2023-11-19 05:04:32,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:04:32,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772783825] [2023-11-19 05:04:32,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:04:32,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:04:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:04:32,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 05:04:32,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 05:04:32,415 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-19 05:04:32,427 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-19 05:04:32,428 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2023-11-19 05:04:32,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2023-11-19 05:04:32,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2023-11-19 05:04:32,430 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2023-11-19 05:04:32,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 05:04:32,435 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-19 05:04:32,440 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-19 05:04:32,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:04:32 BoogieIcfgContainer [2023-11-19 05:04:32,462 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-19 05:04:32,463 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 05:04:32,463 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 05:04:32,464 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 05:04:32,464 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:04:31" (3/4) ... [2023-11-19 05:04:32,465 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-19 05:04:32,524 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/witness.graphml [2023-11-19 05:04:32,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 05:04:32,525 INFO L158 Benchmark]: Toolchain (without parser) took 1680.53ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 83.1MB in the beginning and 110.7MB in the end (delta: -27.6MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2023-11-19 05:04:32,526 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 127.9MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:04:32,526 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.96ms. Allocated memory is still 127.9MB. Free memory was 83.1MB in the beginning and 73.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:04:32,527 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.57ms. Allocated memory is still 127.9MB. Free memory was 73.6MB in the beginning and 72.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:04:32,527 INFO L158 Benchmark]: Boogie Preprocessor took 19.58ms. Allocated memory is still 127.9MB. Free memory was 72.0MB in the beginning and 71.2MB in the end (delta: 800.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:04:32,528 INFO L158 Benchmark]: RCFGBuilder took 435.31ms. Allocated memory is still 127.9MB. Free memory was 71.2MB in the beginning and 61.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 05:04:32,529 INFO L158 Benchmark]: TraceAbstraction took 859.04ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 60.8MB in the beginning and 112.0MB in the end (delta: -51.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 05:04:32,529 INFO L158 Benchmark]: Witness Printer took 61.08ms. Allocated memory is still 157.3MB. Free memory was 112.0MB in the beginning and 110.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 05:04:32,540 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 127.9MB. Free memory is still 75.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.96ms. Allocated memory is still 127.9MB. Free memory was 83.1MB in the beginning and 73.6MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.57ms. Allocated memory is still 127.9MB. Free memory was 73.6MB in the beginning and 72.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.58ms. Allocated memory is still 127.9MB. Free memory was 72.0MB in the beginning and 71.2MB in the end (delta: 800.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 435.31ms. Allocated memory is still 127.9MB. Free memory was 71.2MB in the beginning and 61.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 859.04ms. Allocated memory was 127.9MB in the beginning and 157.3MB in the end (delta: 29.4MB). Free memory was 60.8MB in the beginning and 112.0MB in the end (delta: -51.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 61.08ms. Allocated memory is still 157.3MB. Free memory was 112.0MB in the beginning and 110.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 23]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int k, i, j, tmp; [L16] k = __VERIFIER_nondet_int() [L17] i = __VERIFIER_nondet_int() [L18] j = __VERIFIER_nondet_int() [L19] COND TRUE i <= 100 && j <= k [L20] tmp = i [L21] i = j VAL [i=-2147483648, j=-2147483648, k=-2147483648, tmp=0] [L22] EXPR tmp + 1 [L22] j = tmp + 1 VAL [i=-2147483648, j=1, k=-2147483648, tmp=0] [L23] k - 1 VAL [i=-2147483648, j=1, k=-2147483648, tmp=0] - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 12 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=1, InterpolantAutomatonStates: 7, 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 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 RESULT: Ultimate proved your program to be incorrect! [2023-11-19 05:04:32,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f43a693-5419-4d01-8679-7f48435aac72/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)