./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 30f4e4ab 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 0.1.24-30f4e4a [2019-11-27 22:33:50,279 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:33:50,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:33:50,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:33:50,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:33:50,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:33:50,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:33:50,313 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:33:50,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:33:50,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:33:50,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:33:50,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:33:50,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:33:50,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:33:50,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:33:50,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:33:50,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:33:50,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:33:50,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:33:50,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:33:50,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:33:50,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:33:50,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:33:50,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:33:50,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:33:50,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:33:50,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:33:50,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:33:50,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:33:50,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:33:50,353 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:33:50,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:33:50,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:33:50,355 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:33:50,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:33:50,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:33:50,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:33:50,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:33:50,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:33:50,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:33:50,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:33:50,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 22:33:50,375 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:33:50,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:33:50,376 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:33:50,376 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:33:50,377 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:33:50,377 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:33:50,377 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:33:50,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 22:33:50,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:33:50,378 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:33:50,378 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:33:50,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:33:50,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:33:50,379 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:33:50,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:33:50,380 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:33:50,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:33:50,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:33:50,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:33:50,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:33:50,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:33:50,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:33:50,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:33:50,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:33:50,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:33:50,383 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 22:33:50,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 22:33:50,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:33:50,383 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 [2019-11-27 22:33:50,690 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:33:50,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:33:50,707 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:33:50,709 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:33:50,709 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:33:50,710 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/modulus-2.i [2019-11-27 22:33:50,786 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54ab6bd88/7268210fcf9f4b3e81f909d9f3eb8bca/FLAGd565a9713 [2019-11-27 22:33:51,254 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:33:51,255 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/modulus-2.i [2019-11-27 22:33:51,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54ab6bd88/7268210fcf9f4b3e81f909d9f3eb8bca/FLAGd565a9713 [2019-11-27 22:33:51,635 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54ab6bd88/7268210fcf9f4b3e81f909d9f3eb8bca [2019-11-27 22:33:51,638 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:33:51,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:33:51,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:33:51,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:33:51,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:33:51,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:51,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fddefb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51, skipping insertion in model container [2019-11-27 22:33:51,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:51,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:33:51,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:33:51,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:33:51,915 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:33:51,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:33:51,967 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:33:51,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51 WrapperNode [2019-11-27 22:33:51,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:33:51,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:33:51,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:33:51,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:33:51,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:33:52,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:33:52,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:33:52,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:33:52,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,080 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,085 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (1/1) ... [2019-11-27 22:33:52,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:33:52,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:33:52,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:33:52,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:33:52,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (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 [2019-11-27 22:33:52,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:33:52,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:33:52,351 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:33:52,352 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-27 22:33:52,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:52 BoogieIcfgContainer [2019-11-27 22:33:52,353 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:33:52,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:33:52,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:33:52,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:33:52,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:33:51" (1/3) ... [2019-11-27 22:33:52,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b78ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:33:52, skipping insertion in model container [2019-11-27 22:33:52,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:51" (2/3) ... [2019-11-27 22:33:52,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14b78ee8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:33:52, skipping insertion in model container [2019-11-27 22:33:52,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:52" (3/3) ... [2019-11-27 22:33:52,372 INFO L109 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2019-11-27 22:33:52,389 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:33:52,399 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:33:52,434 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:33:52,461 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:33:52,461 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:33:52,461 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:33:52,462 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:33:52,462 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:33:52,462 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:33:52,462 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:33:52,462 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:33:52,492 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-27 22:33:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 22:33:52,497 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:33:52,498 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:33:52,498 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:33:52,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:33:52,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1538988787, now seen corresponding path program 1 times [2019-11-27 22:33:52,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 22:33:52,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982749507] [2019-11-27 22:33:52,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 22:33:52,604 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-27 22:33:52,604 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65280421] [2019-11-27 22:33:52,605 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 [2019-11-27 22:33:55,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2019-11-27 22:33:55,915 WARN L168 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2019-11-27 22:33:55,916 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 22:33:56,120 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-27 22:33:56,137 WARN L229 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-11-27 22:33:56,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:33:56 BoogieIcfgContainer [2019-11-27 22:33:56,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:33:56,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:33:56,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:33:56,139 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:33:56,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:33:52" (3/4) ... [2019-11-27 22:33:56,143 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 22:33:56,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:33:56,146 INFO L168 Benchmark]: Toolchain (without parser) took 4504.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -155.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:56,147 INFO L168 Benchmark]: CDTParser took 0.32 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. [2019-11-27 22:33:56,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.59 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:56,149 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -203.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:56,150 INFO L168 Benchmark]: Boogie Preprocessor took 22.16 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. [2019-11-27 22:33:56,151 INFO L168 Benchmark]: RCFGBuilder took 260.04 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:56,152 INFO L168 Benchmark]: TraceAbstraction took 3775.53 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-11-27 22:33:56,156 INFO L168 Benchmark]: Witness Printer took 5.11 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. [2019-11-27 22:33:56,163 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 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 327.59 ms. Allocated memory is still 1.0 GB. Free memory was 955.0 MB in the beginning and 944.3 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 101.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 944.3 MB in the beginning and 1.1 GB in the end (delta: -203.9 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.16 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. * RCFGBuilder took 260.04 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: 12.4 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3775.53 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: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.11 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. * 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 0.1.24-30f4e4a [2019-11-27 22:33:58,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 22:33:58,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 22:33:58,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 22:33:58,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 22:33:58,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 22:33:58,155 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 22:33:58,165 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 22:33:58,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 22:33:58,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 22:33:58,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 22:33:58,177 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 22:33:58,178 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 22:33:58,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 22:33:58,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 22:33:58,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 22:33:58,187 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 22:33:58,188 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 22:33:58,191 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 22:33:58,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 22:33:58,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 22:33:58,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 22:33:58,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 22:33:58,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 22:33:58,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 22:33:58,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 22:33:58,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 22:33:58,211 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 22:33:58,212 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 22:33:58,213 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 22:33:58,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 22:33:58,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 22:33:58,215 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 22:33:58,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 22:33:58,217 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 22:33:58,217 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 22:33:58,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 22:33:58,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 22:33:58,219 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 22:33:58,220 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 22:33:58,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 22:33:58,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 22:33:58,246 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 22:33:58,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 22:33:58,247 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 22:33:58,248 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 22:33:58,252 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 22:33:58,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 22:33:58,253 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 22:33:58,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 22:33:58,253 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 22:33:58,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 22:33:58,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 22:33:58,254 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 22:33:58,254 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 22:33:58,255 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 22:33:58,256 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 22:33:58,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 22:33:58,257 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 22:33:58,257 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 22:33:58,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 22:33:58,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 22:33:58,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 22:33:58,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 22:33:58,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 22:33:58,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 22:33:58,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 22:33:58,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 22:33:58,264 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 22:33:58,264 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 22:33:58,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 22:33:58,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 22:33:58,265 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 [2019-11-27 22:33:58,561 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 22:33:58,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 22:33:58,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 22:33:58,587 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 22:33:58,588 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 22:33:58,589 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/modulus-2.i [2019-11-27 22:33:58,647 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1a54087/89e06cf2752349c0acdac544bd04edb2/FLAG7e6c314b3 [2019-11-27 22:33:59,122 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 22:33:59,123 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/modulus-2.i [2019-11-27 22:33:59,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1a54087/89e06cf2752349c0acdac544bd04edb2/FLAG7e6c314b3 [2019-11-27 22:33:59,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc1a54087/89e06cf2752349c0acdac544bd04edb2 [2019-11-27 22:33:59,496 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 22:33:59,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 22:33:59,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 22:33:59,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 22:33:59,503 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 22:33:59,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@569c12aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59, skipping insertion in model container [2019-11-27 22:33:59,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 22:33:59,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 22:33:59,705 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:33:59,711 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 22:33:59,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 22:33:59,745 INFO L208 MainTranslator]: Completed translation [2019-11-27 22:33:59,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59 WrapperNode [2019-11-27 22:33:59,746 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 22:33:59,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 22:33:59,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 22:33:59,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 22:33:59,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,763 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 22:33:59,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 22:33:59,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 22:33:59,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 22:33:59,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (1/1) ... [2019-11-27 22:33:59,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 22:33:59,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 22:33:59,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 22:33:59,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 22:33:59,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (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 [2019-11-27 22:33:59,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 22:33:59,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 22:34:00,135 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 22:34:00,136 INFO L297 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-27 22:34:00,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:34:00 BoogieIcfgContainer [2019-11-27 22:34:00,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 22:34:00,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 22:34:00,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 22:34:00,142 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 22:34:00,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 10:33:59" (1/3) ... [2019-11-27 22:34:00,143 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744af77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:34:00, skipping insertion in model container [2019-11-27 22:34:00,143 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 10:33:59" (2/3) ... [2019-11-27 22:34:00,144 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744af77f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 10:34:00, skipping insertion in model container [2019-11-27 22:34:00,144 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:34:00" (3/3) ... [2019-11-27 22:34:00,146 INFO L109 eAbstractionObserver]: Analyzing ICFG modulus-2.i [2019-11-27 22:34:00,156 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 22:34:00,164 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 22:34:00,178 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 22:34:00,240 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 22:34:00,241 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 22:34:00,241 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 22:34:00,241 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 22:34:00,241 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 22:34:00,241 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 22:34:00,241 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 22:34:00,242 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 22:34:00,268 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-27 22:34:00,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 22:34:00,276 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:34:00,277 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:34:00,277 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:34:00,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:34:00,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1538988787, now seen corresponding path program 1 times [2019-11-27 22:34:00,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 22:34:00,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [963081017] [2019-11-27 22:34:00,298 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 [2019-11-27 22:34:00,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:34:00,474 WARN L253 TraceCheckSpWp]: Trace formula consists of 15 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-27 22:34:00,478 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:34:00,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 22:34:00,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:34:00,792 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 22:34:03,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:34:03,588 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [963081017] [2019-11-27 22:34:03,589 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:34:03,589 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2019-11-27 22:34:03,591 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877471472] [2019-11-27 22:34:03,596 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-27 22:34:03,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 22:34:03,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-27 22:34:03,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=1, NotChecked=0, Total=72 [2019-11-27 22:34:03,612 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 9 states. [2019-11-27 22:34:04,380 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-11-27 22:34:05,642 WARN L192 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 16 [2019-11-27 22:34:06,412 WARN L192 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2019-11-27 22:34:07,165 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2019-11-27 22:34:07,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:34:07,170 INFO L93 Difference]: Finished difference Result 53 states and 68 transitions. [2019-11-27 22:34:07,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-27 22:34:07,171 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 7 [2019-11-27 22:34:07,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:34:07,179 INFO L225 Difference]: With dead ends: 53 [2019-11-27 22:34:07,180 INFO L226 Difference]: Without dead ends: 17 [2019-11-27 22:34:07,184 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=70, Invalid=139, Unknown=1, NotChecked=0, Total=210 [2019-11-27 22:34:07,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-11-27 22:34:07,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 10. [2019-11-27 22:34:07,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-27 22:34:07,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-11-27 22:34:07,220 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 7 [2019-11-27 22:34:07,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:34:07,221 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-11-27 22:34:07,221 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-27 22:34:07,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-11-27 22:34:07,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-27 22:34:07,222 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 22:34:07,222 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-27 22:34:07,434 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 22:34:07,435 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 22:34:07,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 22:34:07,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1538929205, now seen corresponding path program 1 times [2019-11-27 22:34:07,437 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 22:34:07,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [87226190] [2019-11-27 22:34:07,438 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 [2019-11-27 22:34:07,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 22:34:07,773 WARN L253 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-27 22:34:07,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 22:34:07,938 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-27 22:34:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:34:08,096 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 22:34:09,034 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-11-27 22:34:09,547 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2019-11-27 22:34:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 22:34:09,857 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [87226190] [2019-11-27 22:34:09,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 22:34:09,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-27 22:34:09,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464042956] [2019-11-27 22:34:09,860 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-27 22:34:09,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 22:34:09,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-27 22:34:09,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2019-11-27 22:34:09,861 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 11 states. [2019-11-27 22:34:10,694 WARN L192 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-11-27 22:34:11,172 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-11-27 22:34:14,321 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-11-27 22:34:14,743 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-11-27 22:34:14,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 22:34:14,744 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2019-11-27 22:34:14,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-27 22:34:14,745 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-11-27 22:34:14,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 22:34:14,745 INFO L225 Difference]: With dead ends: 16 [2019-11-27 22:34:14,745 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 22:34:14,747 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2019-11-27 22:34:14,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 22:34:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 22:34:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 22:34:14,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 22:34:14,748 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-27 22:34:14,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 22:34:14,748 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 22:34:14,749 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-27 22:34:14,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 22:34:14,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 22:34:14,950 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 22:34:14,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 22:34:16,390 WARN L192 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2019-11-27 22:34:16,394 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 22:34:16,394 INFO L246 CegarLoopResult]: For program point L40-1(lines 40 42) no Hoare annotation was computed. [2019-11-27 22:34:16,394 INFO L246 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2019-11-27 22:34:16,394 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))) [2019-11-27 22:34:16,395 INFO L246 CegarLoopResult]: For program point L34-3(lines 34 37) no Hoare annotation was computed. [2019-11-27 22:34:16,395 INFO L246 CegarLoopResult]: For program point L30(lines 30 44) no Hoare annotation was computed. [2019-11-27 22:34:16,395 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)))) [2019-11-27 22:34:16,395 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 22:34:16,395 INFO L246 CegarLoopResult]: For program point L32-3(lines 30 44) no Hoare annotation was computed. [2019-11-27 22:34:16,396 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))) [2019-11-27 22:34:16,396 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 22:34:16,396 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2019-11-27 22:34:16,396 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))) [2019-11-27 22:34:16,396 INFO L246 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2019-11-27 22:34:16,405 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,406 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 10:34:16 BoogieIcfgContainer [2019-11-27 22:34:16,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 22:34:16,423 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 22:34:16,423 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 22:34:16,424 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 22:34:16,424 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 10:34:00" (3/4) ... [2019-11-27 22:34:16,427 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 22:34:16,438 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-27 22:34:16,438 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-27 22:34:16,464 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) [2019-11-27 22:34:16,464 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) [2019-11-27 22:34:16,464 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) [2019-11-27 22:34:16,465 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) [2019-11-27 22:34:16,488 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 22:34:16,488 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 22:34:16,490 INFO L168 Benchmark]: Toolchain (without parser) took 16992.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 951.0 MB in the beginning and 950.4 MB in the end (delta: 555.7 kB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:16,490 INFO L168 Benchmark]: CDTParser took 0.16 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. [2019-11-27 22:34:16,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.42 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:16,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:16,492 INFO L168 Benchmark]: Boogie Preprocessor took 22.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 22:34:16,493 INFO L168 Benchmark]: RCFGBuilder took 280.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:16,494 INFO L168 Benchmark]: TraceAbstraction took 16284.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 957.2 MB in the end (delta: 133.3 MB). Peak memory consumption was 133.3 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:16,495 INFO L168 Benchmark]: Witness Printer took 64.80 ms. Allocated memory is still 1.1 GB. Free memory was 957.2 MB in the beginning and 950.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-27 22:34:16,498 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 248.42 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 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 86.03 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.58 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 280.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 16284.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 957.2 MB in the end (delta: 133.3 MB). Peak memory consumption was 133.3 MB. Max. memory is 11.5 GB. * Witness Printer took 64.80 ms. Allocated memory is still 1.1 GB. Free memory was 957.2 MB in the beginning and 950.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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 [2019-11-27 22:34:16,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,512 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,512 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 [2019-11-27 22:34:16,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,513 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,514 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,514 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 [2019-11-27 22:34:16,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,515 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,516 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 [2019-11-27 22:34:16,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~s~0,QUANTIFIED] [2019-11-27 22:34:16,518 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: 14.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, HoareTripleCheckerStatistics: 14 SDtfs, 98 SDslu, 44 SDs, 0 SdLazy, 116 SolverSat, 24 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 9.2s 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, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.2s 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...