./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/modulus-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/bitvector/modulus-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c028dc478ad08c52f1db2e76a15a3094442b18a8 ....................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/bitvector/modulus-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c028dc478ad08c52f1db2e76a15a3094442b18a8 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 15:38:21,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:38:21,976 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:38:21,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:38:21,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:38:21,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:38:21,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:38:21,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:38:21,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:38:21,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:38:21,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:38:22,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:38:22,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:38:22,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:38:22,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:38:22,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:38:22,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:38:22,010 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:38:22,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:38:22,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:38:22,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:38:22,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:38:22,026 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:38:22,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:38:22,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:38:22,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:38:22,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:38:22,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:38:22,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:38:22,037 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:38:22,037 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:38:22,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:38:22,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:38:22,040 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:38:22,041 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:38:22,041 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:38:22,042 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:38:22,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:38:22,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:38:22,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:38:22,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:38:22,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 15:38:22,060 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:38:22,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:38:22,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:38:22,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:38:22,063 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:38:22,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:38:22,063 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:38:22,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 15:38:22,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:38:22,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:38:22,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:38:22,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:38:22,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:38:22,065 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:38:22,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:38:22,065 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:38:22,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:38:22,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:38:22,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:38:22,066 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:38:22,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:38:22,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:38:22,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:38:22,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:38:22,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:38:22,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 15:38:22,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 15:38:22,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:38:22,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:38:22,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2019-11-28 15:38:22,376 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:38:22,398 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:38:22,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:38:22,402 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:38:22,403 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:38:22,404 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/modulus-2.i [2019-11-28 15:38:22,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11744fc15/6e149786ff934c5994acea8d0995ab49/FLAG226ad35d5 [2019-11-28 15:38:22,950 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:38:22,951 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/modulus-2.i [2019-11-28 15:38:22,959 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11744fc15/6e149786ff934c5994acea8d0995ab49/FLAG226ad35d5 [2019-11-28 15:38:23,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11744fc15/6e149786ff934c5994acea8d0995ab49 [2019-11-28 15:38:23,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:38:23,328 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:38:23,329 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:38:23,329 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:38:23,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:38:23,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@301a290c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23, skipping insertion in model container [2019-11-28 15:38:23,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:38:23,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:38:23,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:38:23,561 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:38:23,582 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:38:23,597 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:38:23,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23 WrapperNode [2019-11-28 15:38:23,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:38:23,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:38:23,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:38:23,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:38:23,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,617 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:38:23,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:38:23,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:38:23,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:38:23,697 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,699 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... [2019-11-28 15:38:23,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:38:23,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:38:23,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:38:23,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:38:23,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:38:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:38:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:38:23,975 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:38:23,976 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 15:38:23,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:23 BoogieIcfgContainer [2019-11-28 15:38:23,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:38:23,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:38:23,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:38:23,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:38:23,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:38:23" (1/3) ... [2019-11-28 15:38:23,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18abe984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:23, skipping insertion in model container [2019-11-28 15:38:23,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:23" (2/3) ... [2019-11-28 15:38:23,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18abe984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:23, skipping insertion in model container [2019-11-28 15:38:23,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:23" (3/3) ... [2019-11-28 15:38:23,989 INFO L109 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2019-11-28 15:38:24,004 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:38:24,016 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:38:24,055 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:38:24,092 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:38:24,093 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:38:24,093 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:38:24,093 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:38:24,093 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:38:24,094 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:38:24,094 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:38:24,094 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:38:24,109 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 15:38:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 15:38:24,116 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:38:24,117 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:38:24,118 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:38:24,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:38:24,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1538988787, now seen corresponding path program 1 times [2019-11-28 15:38:24,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 15:38:24,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473352056] [2019-11-28 15:38:24,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 15:38:24,213 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-28 15:38:24,214 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1857636939] [2019-11-28 15:38:24,214 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:38:27,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-11-28 15:38:27,499 WARN L168 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2019-11-28 15:38:27,500 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-28 15:38:27,704 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-28 15:38:27,721 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-11-28 15:38:27,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:38:27 BoogieIcfgContainer [2019-11-28 15:38:27,722 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:38:27,722 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:38:27,722 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:38:27,723 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:38:27,723 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:23" (3/4) ... [2019-11-28 15:38:27,727 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 15:38:27,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:38:27,731 INFO L168 Benchmark]: Toolchain (without parser) took 4401.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 956.3 MB in the beginning and 1.1 GB in the end (delta: -136.3 MB). Peak memory consumption was 2.2 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:27,731 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:38:27,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.95 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:27,734 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:27,734 INFO L168 Benchmark]: Boogie Preprocessor took 22.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:27,735 INFO L168 Benchmark]: RCFGBuilder took 265.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:27,736 INFO L168 Benchmark]: TraceAbstraction took 3743.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:27,737 INFO L168 Benchmark]: Witness Printer took 5.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:38:27,742 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 269.95 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -189.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 265.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3743.02 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of shiftLeft at line 29. Possible FailurePath: [L24] unsigned int n = __VERIFIER_nondet_uint(); [L25] unsigned int s = __VERIFIER_nondet_uint(); [L26] unsigned int d; [L27] unsigned int m; [L29] d = (1 << s) - 1 [L30] COND TRUE d > 0 [L31] m = n [L32] COND FALSE !(n > d) [L40] COND TRUE m == d [L41] m = 0 [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: UNKNOWN, OverallTime: 3.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-f470102 [2019-11-28 15:38:29,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 15:38:29,675 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 15:38:29,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 15:38:29,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 15:38:29,689 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 15:38:29,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 15:38:29,693 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 15:38:29,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 15:38:29,696 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 15:38:29,697 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 15:38:29,698 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 15:38:29,699 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 15:38:29,700 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 15:38:29,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 15:38:29,702 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 15:38:29,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 15:38:29,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 15:38:29,706 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 15:38:29,709 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 15:38:29,713 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 15:38:29,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 15:38:29,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 15:38:29,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 15:38:29,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 15:38:29,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 15:38:29,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 15:38:29,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 15:38:29,724 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 15:38:29,725 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 15:38:29,725 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 15:38:29,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 15:38:29,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 15:38:29,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 15:38:29,729 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 15:38:29,729 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 15:38:29,730 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 15:38:29,730 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 15:38:29,731 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 15:38:29,732 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 15:38:29,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 15:38:29,733 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-28 15:38:29,748 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 15:38:29,748 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 15:38:29,750 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 15:38:29,750 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 15:38:29,750 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 15:38:29,751 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 15:38:29,751 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 15:38:29,751 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 15:38:29,752 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 15:38:29,752 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 15:38:29,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 15:38:29,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 15:38:29,753 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-28 15:38:29,753 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-28 15:38:29,753 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 15:38:29,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 15:38:29,754 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 15:38:29,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 15:38:29,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 15:38:29,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 15:38:29,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 15:38:29,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 15:38:29,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:38:29,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 15:38:29,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 15:38:29,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 15:38:29,757 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-28 15:38:29,757 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-28 15:38:29,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 15:38:29,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 15:38:29,758 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-28 15:38:29,758 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c028dc478ad08c52f1db2e76a15a3094442b18a8 [2019-11-28 15:38:30,087 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 15:38:30,100 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 15:38:30,105 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 15:38:30,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 15:38:30,107 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 15:38:30,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/modulus-2.i [2019-11-28 15:38:30,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5e7bac7c/4d26d8968ab543b790d4f3a1b50498d0/FLAG4f05d4605 [2019-11-28 15:38:30,670 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 15:38:30,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/modulus-2.i [2019-11-28 15:38:30,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5e7bac7c/4d26d8968ab543b790d4f3a1b50498d0/FLAG4f05d4605 [2019-11-28 15:38:31,070 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5e7bac7c/4d26d8968ab543b790d4f3a1b50498d0 [2019-11-28 15:38:31,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 15:38:31,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 15:38:31,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 15:38:31,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 15:38:31,082 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 15:38:31,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245d122c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31, skipping insertion in model container [2019-11-28 15:38:31,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 15:38:31,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 15:38:31,363 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:38:31,369 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 15:38:31,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 15:38:31,403 INFO L208 MainTranslator]: Completed translation [2019-11-28 15:38:31,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31 WrapperNode [2019-11-28 15:38:31,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 15:38:31,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 15:38:31,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 15:38:31,406 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 15:38:31,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 15:38:31,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 15:38:31,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 15:38:31,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 15:38:31,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,515 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... [2019-11-28 15:38:31,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 15:38:31,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 15:38:31,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 15:38:31,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 15:38:31,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 15:38:31,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 15:38:31,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 15:38:31,802 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 15:38:31,802 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-28 15:38:31,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:31 BoogieIcfgContainer [2019-11-28 15:38:31,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 15:38:31,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 15:38:31,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 15:38:31,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 15:38:31,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:38:31" (1/3) ... [2019-11-28 15:38:31,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cf4de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:31, skipping insertion in model container [2019-11-28 15:38:31,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:38:31" (2/3) ... [2019-11-28 15:38:31,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33cf4de1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:38:31, skipping insertion in model container [2019-11-28 15:38:31,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:31" (3/3) ... [2019-11-28 15:38:31,821 INFO L109 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2019-11-28 15:38:31,852 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 15:38:31,869 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 15:38:31,901 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-28 15:38:31,933 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 15:38:31,934 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 15:38:31,934 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 15:38:31,934 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 15:38:31,934 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 15:38:31,934 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 15:38:31,934 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 15:38:31,934 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 15:38:31,948 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-28 15:38:31,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 15:38:31,954 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:38:31,955 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:38:31,956 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:38:31,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:38:31,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1538988787, now seen corresponding path program 1 times [2019-11-28 15:38:31,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 15:38:31,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1321825463] [2019-11-28 15:38:31,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-28 15:38:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:38:32,103 WARN L262 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 15:38:32,108 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:38:32,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 15:38:32,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:38:32,404 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 15:38:35,004 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2019-11-28 15:38:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:38:35,268 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1321825463] [2019-11-28 15:38:35,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:38:35,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-28 15:38:35,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427585601] [2019-11-28 15:38:35,275 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-28 15:38:35,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 15:38:35,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-28 15:38:35,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2019-11-28 15:38:35,289 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 9 states. [2019-11-28 15:38:36,110 WARN L192 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-11-28 15:38:37,518 WARN L192 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2019-11-28 15:38:38,322 WARN L192 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2019-11-28 15:38:39,132 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-11-28 15:38:39,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:38:39,137 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2019-11-28 15:38:39,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-28 15:38:39,139 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2019-11-28 15:38:39,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:38:39,149 INFO L225 Difference]: With dead ends: 53 [2019-11-28 15:38:39,149 INFO L226 Difference]: Without dead ends: 17 [2019-11-28 15:38:39,153 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=70, Invalid=139, Unknown=1, NotChecked=0, Total=210 [2019-11-28 15:38:39,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-28 15:38:39,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2019-11-28 15:38:39,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-28 15:38:39,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-28 15:38:39,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2019-11-28 15:38:39,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:38:39,191 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-28 15:38:39,191 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-28 15:38:39,191 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-28 15:38:39,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-28 15:38:39,192 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 15:38:39,192 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-28 15:38:39,404 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-28 15:38:39,405 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 15:38:39,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 15:38:39,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1538929205, now seen corresponding path program 1 times [2019-11-28 15:38:39,407 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-28 15:38:39,407 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851130105] [2019-11-28 15:38:39,408 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-28 15:38:39,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 15:38:39,780 WARN L262 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-28 15:38:39,781 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 15:38:39,940 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-28 15:38:40,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:38:40,145 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-11-28 15:38:41,010 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-11-28 15:38:41,532 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-11-28 15:38:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 15:38:42,104 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851130105] [2019-11-28 15:38:42,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-28 15:38:42,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-28 15:38:42,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689578733] [2019-11-28 15:38:42,106 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-28 15:38:42,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-28 15:38:42,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-28 15:38:42,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-11-28 15:38:42,107 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 11 states. [2019-11-28 15:38:43,144 WARN L192 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-11-28 15:38:43,610 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-11-28 15:38:46,938 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-11-28 15:38:47,317 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-11-28 15:38:47,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 15:38:47,318 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-11-28 15:38:47,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-28 15:38:47,318 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-11-28 15:38:47,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 15:38:47,319 INFO L225 Difference]: With dead ends: 16 [2019-11-28 15:38:47,319 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 15:38:47,323 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-28 15:38:47,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 15:38:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 15:38:47,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 15:38:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 15:38:47,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-28 15:38:47,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 15:38:47,325 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 15:38:47,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-28 15:38:47,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 15:38:47,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 15:38:47,528 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-28 15:38:47,532 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-28 15:38:48,810 WARN L192 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2019-11-28 15:38:48,813 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 15:38:48,814 INFO L246 CegarLoopResult]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2019-11-28 15:38:48,814 INFO L246 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2019-11-28 15:38:48,814 INFO L242 CegarLoopResult]: At program point L34-2(lines 34 37) the Hoare annotation is: (exists ((ULTIMATE.start_main_~s~0 (_ BitVec 32))) (and (bvult ULTIMATE.start_main_~s~0 (_ bv31 32)) (= (bvadd (bvshl (_ bv1 32) ULTIMATE.start_main_~s~0) (_ bv4294967295 32)) ULTIMATE.start_main_~d~0))) [2019-11-28 15:38:48,814 INFO L246 CegarLoopResult]: For program point L34-3(lines 34 37) no Hoare annotation was computed. [2019-11-28 15:38:48,814 INFO L246 CegarLoopResult]: For program point L30(lines 30 44) no Hoare annotation was computed. [2019-11-28 15:38:48,815 INFO L242 CegarLoopResult]: At program point L32-2(lines 32 39) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~m~0 ULTIMATE.start_main_~d~0)) (.cse1 (bvurem ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0))) (and (exists ((ULTIMATE.start_main_~s~0 (_ BitVec 32))) (and (bvult ULTIMATE.start_main_~s~0 (_ bv31 32)) (= (bvadd (bvshl (_ bv1 32) ULTIMATE.start_main_~s~0) (_ bv4294967295 32)) ULTIMATE.start_main_~d~0))) (or (not .cse0) (= .cse1 (_ bv0 32))) (or .cse0 (bvugt ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~d~0) (= .cse1 ULTIMATE.start_main_~m~0)))) [2019-11-28 15:38:48,815 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 15:38:48,815 INFO L246 CegarLoopResult]: For program point L32-3(lines 30 44) no Hoare annotation was computed. [2019-11-28 15:38:48,815 INFO L242 CegarLoopResult]: At program point L30-1(lines 30 44) the Hoare annotation is: (exists ((ULTIMATE.start_main_~s~0 (_ BitVec 32))) (and (bvult ULTIMATE.start_main_~s~0 (_ bv31 32)) (= (bvadd (bvshl (_ bv1 32) ULTIMATE.start_main_~s~0) (_ bv4294967295 32)) ULTIMATE.start_main_~d~0))) [2019-11-28 15:38:48,815 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 15:38:48,816 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2019-11-28 15:38:48,816 INFO L242 CegarLoopResult]: At program point L45(lines 22 46) the Hoare annotation is: (exists ((ULTIMATE.start_main_~s~0 (_ BitVec 32))) (and (bvult ULTIMATE.start_main_~s~0 (_ bv31 32)) (= (bvadd (bvshl (_ bv1 32) ULTIMATE.start_main_~s~0) (_ bv4294967295 32)) ULTIMATE.start_main_~d~0))) [2019-11-28 15:38:48,816 INFO L246 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2019-11-28 15:38:48,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,824 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,830 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,831 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,831 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,835 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:38:48 BoogieIcfgContainer [2019-11-28 15:38:48,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 15:38:48,838 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 15:38:48,838 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 15:38:48,839 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 15:38:48,839 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:38:31" (3/4) ... [2019-11-28 15:38:48,843 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 15:38:48,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 15:38:48,854 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 15:38:48,878 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start_main_~s~0 : bv32 :: ~bvult32(ULTIMATE.start_main_~s~0, 31bv32) && ~bvadd64(~bvshl32(1bv32, ULTIMATE.start_main_~s~0), 4294967295bv32) == d) [2019-11-28 15:38:48,878 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~s~0 : bv32 :: ~bvult32(ULTIMATE.start_main_~s~0, 31bv32) && ~bvadd64(~bvshl32(1bv32, ULTIMATE.start_main_~s~0), 4294967295bv32) == d) && (!(m == d) || ~bvurem32(n, d) == 0bv32)) && ((m == d || ~bvugt32(n, d)) || ~bvurem32(n, d) == m) [2019-11-28 15:38:48,878 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start_main_~s~0 : bv32 :: ~bvult32(ULTIMATE.start_main_~s~0, 31bv32) && ~bvadd64(~bvshl32(1bv32, ULTIMATE.start_main_~s~0), 4294967295bv32) == d) [2019-11-28 15:38:48,879 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start_main_~s~0 : bv32 :: ~bvult32(ULTIMATE.start_main_~s~0, 31bv32) && ~bvadd64(~bvshl32(1bv32, ULTIMATE.start_main_~s~0), 4294967295bv32) == d) [2019-11-28 15:38:48,896 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 15:38:48,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 15:38:48,898 INFO L168 Benchmark]: Toolchain (without parser) took 17821.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 956.3 MB in the beginning and 984.4 MB in the end (delta: -28.1 MB). Peak memory consumption was 116.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:48,899 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 15:38:48,900 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.91 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:48,900 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:48,901 INFO L168 Benchmark]: Boogie Preprocessor took 25.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:48,902 INFO L168 Benchmark]: RCFGBuilder took 271.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:48,902 INFO L168 Benchmark]: TraceAbstraction took 17026.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.9 MB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:48,903 INFO L168 Benchmark]: Witness Printer took 58.16 ms. Allocated memory is still 1.2 GB. Free memory was 990.9 MB in the beginning and 984.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2019-11-28 15:38:48,907 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.91 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 101.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -189.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.92 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 271.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 17026.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 990.9 MB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 11.5 GB. * Witness Printer took 58.16 ms. Allocated memory is still 1.2 GB. Free memory was 990.9 MB in the beginning and 984.4 MB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 34]: Loop Invariant [2019-11-28 15:38:48,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,917 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_main_~s~0 : bv32 :: ~bvult32(ULTIMATE.start_main_~s~0, 31bv32) && ~bvadd64(~bvshl32(1bv32, ULTIMATE.start_main_~s~0), 4294967295bv32) == d) - InvariantResult [Line: 30]: Loop Invariant [2019-11-28 15:38:48,918 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,919 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_main_~s~0 : bv32 :: ~bvult32(ULTIMATE.start_main_~s~0, 31bv32) && ~bvadd64(~bvshl32(1bv32, ULTIMATE.start_main_~s~0), 4294967295bv32) == d) - InvariantResult [Line: 22]: Loop Invariant [2019-11-28 15:38:48,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,920 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start_main_~s~0 : bv32 :: ~bvult32(ULTIMATE.start_main_~s~0, 31bv32) && ~bvadd64(~bvshl32(1bv32, ULTIMATE.start_main_~s~0), 4294967295bv32) == d) - InvariantResult [Line: 32]: Loop Invariant [2019-11-28 15:38:48,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,921 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-28 15:38:48,922 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~s~0 : bv32 :: ~bvult32(ULTIMATE.start_main_~s~0, 31bv32) && ~bvadd64(~bvshl32(1bv32, ULTIMATE.start_main_~s~0), 4294967295bv32) == d) && (!(m == d) || ~bvurem32(n, d) == 0bv32)) && ((m == d || ~bvugt32(n, d)) || ~bvurem32(n, d) == m) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 15.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, HoareTripleCheckerStatistics: 14 SDtfs, 98 SDslu, 44 SDs, 0 SdLazy, 116 SolverSat, 24 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 18 NumberOfFragments, 71 HoareAnnotationTreeSize, 4 FomulaSimplifications, 325 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 72 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.5s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 8 QuantifiedInterpolants, 1350 SizeOfPredicates, 14 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...