./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e334e85dd18553afecc96b27cf49a003304cbca8 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:19:10,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:19:10,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:19:10,170 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:19:10,170 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:19:10,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:19:10,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:19:10,177 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:19:10,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:19:10,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:19:10,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:19:10,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:19:10,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:19:10,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:19:10,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:19:10,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:19:10,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:19:10,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:19:10,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:19:10,197 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:19:10,198 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:19:10,199 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:19:10,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:19:10,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:19:10,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:19:10,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:19:10,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:19:10,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:19:10,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:19:10,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:19:10,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:19:10,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:19:10,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:19:10,210 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:19:10,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:19:10,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:19:10,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:19:10,211 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:19:10,211 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:19:10,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:19:10,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:19:10,217 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-30 22:19:10,244 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:19:10,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:19:10,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:19:10,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:19:10,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:19:10,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:19:10,246 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:19:10,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:19:10,247 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:19:10,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:19:10,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:19:10,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:19:10,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:19:10,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:19:10,248 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:19:10,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:19:10,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:19:10,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:19:10,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:19:10,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:19:10,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:19:10,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:19:10,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:19:10,261 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:19:10,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:19:10,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:19:10,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:19:10,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:19:10,261 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:19:10,262 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e334e85dd18553afecc96b27cf49a003304cbca8 [2021-08-30 22:19:10,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:19:10,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:19:10,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:19:10,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:19:10,512 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:19:10,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-08-30 22:19:10,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57c0f33b8/633fd2fc1cd341f28eb2f242e44547b7/FLAGbdd769fa1 [2021-08-30 22:19:10,911 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:19:10,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-08-30 22:19:10,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57c0f33b8/633fd2fc1cd341f28eb2f242e44547b7/FLAGbdd769fa1 [2021-08-30 22:19:10,927 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/57c0f33b8/633fd2fc1cd341f28eb2f242e44547b7 [2021-08-30 22:19:10,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:19:10,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:19:10,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:19:10,933 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:19:10,935 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:19:10,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:19:10" (1/1) ... [2021-08-30 22:19:10,936 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48253096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:10, skipping insertion in model container [2021-08-30 22:19:10,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:19:10" (1/1) ... [2021-08-30 22:19:10,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:19:10,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:19:11,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:19:11,058 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:19:11,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:19:11,078 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:19:11,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11 WrapperNode [2021-08-30 22:19:11,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:19:11,079 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:19:11,080 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:19:11,080 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:19:11,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:19:11,101 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:19:11,101 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:19:11,101 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:19:11,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,117 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:19:11,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:19:11,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:19:11,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:19:11,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (1/1) ... [2021-08-30 22:19:11,135 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:19:11,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:19:11,164 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 22:19:11,184 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 22:19:11,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:19:11,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:19:11,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:19:11,293 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-30 22:19:11,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:19:11 BoogieIcfgContainer [2021-08-30 22:19:11,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:19:11,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:19:11,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:19:11,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:19:11,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:19:10" (1/3) ... [2021-08-30 22:19:11,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158bf036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:19:11, skipping insertion in model container [2021-08-30 22:19:11,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:19:11" (2/3) ... [2021-08-30 22:19:11,299 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158bf036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:19:11, skipping insertion in model container [2021-08-30 22:19:11,299 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:19:11" (3/3) ... [2021-08-30 22:19:11,300 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi2.c [2021-08-30 22:19:11,303 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:19:11,303 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-30 22:19:11,339 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:19:11,346 INFO L339 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 22:19:11,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-30 22:19:11,359 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 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) [2021-08-30 22:19:11,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:19:11,363 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:19:11,363 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:19:11,364 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:19:11,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:19:11,367 INFO L82 PathProgramCache]: Analyzing trace with hash 29684842, now seen corresponding path program 1 times [2021-08-30 22:19:11,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:19:11,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718852801] [2021-08-30 22:19:11,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:19:11,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:19:11,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:19:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:19:11,545 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:19:11,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718852801] [2021-08-30 22:19:11,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718852801] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:19:11,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:19:11,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:19:11,548 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285238855] [2021-08-30 22:19:11,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:19:11,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:19:11,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:19:11,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:19:11,573 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-08-30 22:19:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:19:11,649 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2021-08-30 22:19:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:19:11,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-08-30 22:19:11,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:19:11,654 INFO L225 Difference]: With dead ends: 29 [2021-08-30 22:19:11,654 INFO L226 Difference]: Without dead ends: 16 [2021-08-30 22:19:11,656 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:19:11,658 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.60ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.69ms IncrementalHoareTripleChecker+Time [2021-08-30 22:19:11,659 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 0 Invalid, 39 Unknown, 0 Unchecked, 0.60ms Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 64.69ms Time] [2021-08-30 22:19:11,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-08-30 22:19:11,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2021-08-30 22:19:11,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 14 states have internal predecessors, (17), 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) [2021-08-30 22:19:11,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-08-30 22:19:11,693 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 5 [2021-08-30 22:19:11,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:19:11,694 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-08-30 22:19:11,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-08-30 22:19:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-08-30 22:19:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-30 22:19:11,695 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:19:11,695 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-30 22:19:11,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:19:11,696 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:19:11,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:19:11,698 INFO L82 PathProgramCache]: Analyzing trace with hash 920230152, now seen corresponding path program 1 times [2021-08-30 22:19:11,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:19:11,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82972060] [2021-08-30 22:19:11,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:19:11,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:19:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:19:11,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:19:11,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:19:11,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82972060] [2021-08-30 22:19:11,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82972060] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:19:11,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:19:11,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:19:11,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450210887] [2021-08-30 22:19:11,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:19:11,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:19:11,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:19:11,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:19:11,738 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-08-30 22:19:11,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:19:11,763 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-08-30 22:19:11,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:19:11,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-08-30 22:19:11,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:19:11,764 INFO L225 Difference]: With dead ends: 15 [2021-08-30 22:19:11,764 INFO L226 Difference]: Without dead ends: 14 [2021-08-30 22:19:11,764 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:19:11,765 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.17ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.56ms IncrementalHoareTripleChecker+Time [2021-08-30 22:19:11,765 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.17ms Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 22.56ms Time] [2021-08-30 22:19:11,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-08-30 22:19:11,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-08-30 22:19:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 13 states have internal predecessors, (16), 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) [2021-08-30 22:19:11,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-08-30 22:19:11,768 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2021-08-30 22:19:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:19:11,768 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-08-30 22:19:11,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2021-08-30 22:19:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-08-30 22:19:11,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-30 22:19:11,769 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:19:11,769 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:19:11,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:19:11,769 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:19:11,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:19:11,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1537636308, now seen corresponding path program 1 times [2021-08-30 22:19:11,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:19:11,770 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866733630] [2021-08-30 22:19:11,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:19:11,770 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:19:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:19:11,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:19:11,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:19:11,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866733630] [2021-08-30 22:19:11,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866733630] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:19:11,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:19:11,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:19:11,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466247149] [2021-08-30 22:19:11,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:19:11,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:19:11,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:19:11,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:19:11,803 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-08-30 22:19:11,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:19:11,820 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-08-30 22:19:11,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:19:11,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-08-30 22:19:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:19:11,821 INFO L225 Difference]: With dead ends: 14 [2021-08-30 22:19:11,821 INFO L226 Difference]: Without dead ends: 13 [2021-08-30 22:19:11,821 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.88ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:19:11,822 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.29ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.48ms IncrementalHoareTripleChecker+Time [2021-08-30 22:19:11,822 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.29ms Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 9.48ms Time] [2021-08-30 22:19:11,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-08-30 22:19:11,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-08-30 22:19:11,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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) [2021-08-30 22:19:11,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-08-30 22:19:11,825 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 7 [2021-08-30 22:19:11,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:19:11,825 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-08-30 22:19:11,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-08-30 22:19:11,826 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-08-30 22:19:11,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-30 22:19:11,826 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:19:11,826 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:19:11,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:19:11,826 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:19:11,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:19:11,827 INFO L82 PathProgramCache]: Analyzing trace with hash -422085238, now seen corresponding path program 1 times [2021-08-30 22:19:11,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:19:11,827 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954208566] [2021-08-30 22:19:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:19:11,828 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:19:11,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:19:11,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:19:11,843 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:19:11,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954208566] [2021-08-30 22:19:11,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954208566] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:19:11,843 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:19:11,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:19:11,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236508689] [2021-08-30 22:19:11,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:19:11,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:19:11,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:19:11,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:19:11,846 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-08-30 22:19:11,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:19:11,866 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-08-30 22:19:11,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:19:11,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-08-30 22:19:11,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:19:11,866 INFO L225 Difference]: With dead ends: 14 [2021-08-30 22:19:11,867 INFO L226 Difference]: Without dead ends: 13 [2021-08-30 22:19:11,867 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:19:11,868 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.11ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.24ms IncrementalHoareTripleChecker+Time [2021-08-30 22:19:11,868 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.11ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 17.24ms Time] [2021-08-30 22:19:11,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-08-30 22:19:11,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2021-08-30 22:19:11,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 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) [2021-08-30 22:19:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-08-30 22:19:11,870 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2021-08-30 22:19:11,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:19:11,870 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-08-30 22:19:11,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-08-30 22:19:11,870 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-08-30 22:19:11,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-30 22:19:11,871 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:19:11,871 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:19:11,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 22:19:11,871 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:19:11,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:19:11,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1322960227, now seen corresponding path program 1 times [2021-08-30 22:19:11,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:19:11,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484161670] [2021-08-30 22:19:11,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:19:11,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:19:11,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:19:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:19:11,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:19:11,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484161670] [2021-08-30 22:19:11,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484161670] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:19:11,921 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472822472] [2021-08-30 22:19:11,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:19:11,921 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:19:11,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:19:11,922 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:19:11,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-30 22:19:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:19:11,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-30 22:19:11,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:19:12,011 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:19:12,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:19:12,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:19:12,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472822472] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:19:12,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:19:12,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-08-30 22:19:12,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568001993] [2021-08-30 22:19:12,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 22:19:12,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:19:12,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 22:19:12,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:19:12,046 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-08-30 22:19:12,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:19:12,082 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-08-30 22:19:12,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 22:19:12,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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 11 [2021-08-30 22:19:12,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:19:12,083 INFO L225 Difference]: With dead ends: 31 [2021-08-30 22:19:12,083 INFO L226 Difference]: Without dead ends: 30 [2021-08-30 22:19:12,084 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.45ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:19:12,084 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 8 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.43ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.11ms IncrementalHoareTripleChecker+Time [2021-08-30 22:19:12,085 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 0 Invalid, 50 Unknown, 0 Unchecked, 0.43ms Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 30.11ms Time] [2021-08-30 22:19:12,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-08-30 22:19:12,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-08-30 22:19:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.206896551724138) internal successors, (35), 29 states have internal predecessors, (35), 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) [2021-08-30 22:19:12,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2021-08-30 22:19:12,089 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 11 [2021-08-30 22:19:12,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:19:12,089 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2021-08-30 22:19:12,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 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) [2021-08-30 22:19:12,089 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2021-08-30 22:19:12,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-08-30 22:19:12,090 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:19:12,090 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1] [2021-08-30 22:19:12,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-30 22:19:12,305 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:19:12,305 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:19:12,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:19:12,306 INFO L82 PathProgramCache]: Analyzing trace with hash -1869725746, now seen corresponding path program 2 times [2021-08-30 22:19:12,306 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:19:12,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809631936] [2021-08-30 22:19:12,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:19:12,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:19:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:19:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-08-30 22:19:12,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:19:12,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809631936] [2021-08-30 22:19:12,366 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809631936] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:19:12,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830166806] [2021-08-30 22:19:12,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-30 22:19:12,366 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:19:12,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:19:12,377 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:19:12,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-30 22:19:12,399 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-08-30 22:19:12,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 22:19:12,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 22:19:12,401 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:19:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-08-30 22:19:12,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:19:12,581 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2021-08-30 22:19:12,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830166806] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:19:12,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:19:12,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2021-08-30 22:19:12,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450821738] [2021-08-30 22:19:12,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:19:12,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:19:12,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:19:12,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:19:12,589 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-08-30 22:19:12,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:19:12,610 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2021-08-30 22:19:12,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:19:12,615 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 29 [2021-08-30 22:19:12,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:19:12,616 INFO L225 Difference]: With dead ends: 30 [2021-08-30 22:19:12,616 INFO L226 Difference]: Without dead ends: 0 [2021-08-30 22:19:12,616 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.37ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:19:12,617 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.19ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.55ms IncrementalHoareTripleChecker+Time [2021-08-30 22:19:12,617 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 18 Unknown, 0 Unchecked, 0.19ms Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 14.55ms Time] [2021-08-30 22:19:12,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-30 22:19:12,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-30 22:19:12,618 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) [2021-08-30 22:19:12,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-30 22:19:12,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2021-08-30 22:19:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:19:12,618 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-30 22:19:12,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-08-30 22:19:12,618 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-30 22:19:12,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-30 22:19:12,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-08-30 22:19:12,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-08-30 22:19:12,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-08-30 22:19:12,620 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-08-30 22:19:12,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-30 22:19:12,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-08-30 22:19:12,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-30 22:19:12,839 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:19:12,840 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:19:12,873 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-08-30 22:19:12,873 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-30 22:19:12,873 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-08-30 22:19:12,873 INFO L861 garLoopResultBuilder]: At program point L29(lines 13 30) the Hoare annotation is: true [2021-08-30 22:19:12,873 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-08-30 22:19:12,873 INFO L858 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-08-30 22:19:12,873 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 26) no Hoare annotation was computed. [2021-08-30 22:19:12,874 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 20 27) the Hoare annotation is: (and (<= ULTIMATE.start_main_~m~0 2147483647) (<= 0 ULTIMATE.start_main_~v2~0) (<= ULTIMATE.start_main_~v1~0 2147483647) (<= ULTIMATE.start_main_~n~0 2147483647)) [2021-08-30 22:19:12,874 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 28) no Hoare annotation was computed. [2021-08-30 22:19:12,874 INFO L858 garLoopResultBuilder]: For program point L17-1(lines 17 28) no Hoare annotation was computed. [2021-08-30 22:19:12,874 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2021-08-30 22:19:12,874 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-08-30 22:19:12,874 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-30 22:19:12,874 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-30 22:19:12,874 INFO L858 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-08-30 22:19:12,874 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-08-30 22:19:12,877 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:19:12,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:19:12 BoogieIcfgContainer [2021-08-30 22:19:12,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:19:12,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:19:12,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:19:12,886 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:19:12,886 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:19:11" (3/4) ... [2021-08-30 22:19:12,888 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-30 22:19:12,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-30 22:19:12,894 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-30 22:19:12,912 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:19:12,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:19:12,912 INFO L158 Benchmark]: Toolchain (without parser) took 1982.18ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 29.5MB in the beginning and 32.0MB in the end (delta: -2.5MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-08-30 22:19:12,912 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:19:12,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 146.31ms. Allocated memory is still 52.4MB. Free memory was 29.3MB in the beginning and 34.2MB in the end (delta: -4.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-08-30 22:19:12,913 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.40ms. Allocated memory is still 52.4MB. Free memory was 34.2MB in the beginning and 33.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:19:12,913 INFO L158 Benchmark]: Boogie Preprocessor took 16.08ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 32.8MB in the beginning and 50.9MB in the end (delta: -18.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2021-08-30 22:19:12,913 INFO L158 Benchmark]: RCFGBuilder took 176.76ms. Allocated memory is still 67.1MB. Free memory was 50.9MB in the beginning and 43.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-30 22:19:12,913 INFO L158 Benchmark]: TraceAbstraction took 1589.84ms. Allocated memory is still 67.1MB. Free memory was 42.7MB in the beginning and 34.5MB in the end (delta: 8.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-08-30 22:19:12,914 INFO L158 Benchmark]: Witness Printer took 26.02ms. Allocated memory is still 67.1MB. Free memory was 34.5MB in the beginning and 32.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:19:12,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 52.4MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 39.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 146.31ms. Allocated memory is still 52.4MB. Free memory was 29.3MB in the beginning and 34.2MB in the end (delta: -4.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.40ms. Allocated memory is still 52.4MB. Free memory was 34.2MB in the beginning and 33.0MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.08ms. Allocated memory was 52.4MB in the beginning and 67.1MB in the end (delta: 14.7MB). Free memory was 32.8MB in the beginning and 50.9MB in the end (delta: -18.0MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. * RCFGBuilder took 176.76ms. Allocated memory is still 67.1MB. Free memory was 50.9MB in the beginning and 43.2MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1589.84ms. Allocated memory is still 67.1MB. Free memory was 42.7MB in the beginning and 34.5MB in the end (delta: 8.2MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. * Witness Printer took 26.02ms. Allocated memory is still 67.1MB. Free memory was 34.5MB in the beginning and 32.0MB in the end (delta: 2.5MB). 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, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1539.32ms, OverallIterations: 6, TraceHistogramMax: 5, EmptinessCheckTime: 8.05ms, AutomataDifference: 257.13ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 37.12ms, InitialAbstractionConstructionTime: 7.79ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 158.63ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 127.52ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 130 IncrementalHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 0 mSDtfsCounter, 130 mSolverCounterSat, 1.80ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.00ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=5, InterpolantAutomatonStates: 23, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 23.10ms AutomataMinimizationTime, 6 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 89 FormulaSimplificationTreeSizeReduction, 26.96ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 6.08ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 15.72ms SsaConstructionTime, 47.36ms SatisfiabilityAnalysisTime, 483.80ms InterpolantComputationTime, 106 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 136 ConstructedInterpolants, 0 QuantifiedInterpolants, 394 SizeOfPredicates, 2 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 132/153 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 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: ((m <= 2147483647 && 0 <= v2) && v1 <= 2147483647) && n <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-08-30 22:19:12,949 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...