./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.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/loop-industry-pattern/mod3.c -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb436d6177ee4ab6be6acbe7c4a410005aee8ab3 .............................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:02:54,295 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:02:54,298 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:02:54,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:02:54,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:02:54,355 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:02:54,357 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:02:54,360 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:02:54,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:02:54,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:02:54,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:02:54,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:02:54,370 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:02:54,372 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:02:54,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:02:54,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:02:54,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:02:54,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:02:54,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:02:54,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:02:54,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:02:54,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:02:54,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:02:54,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:02:54,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:02:54,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:02:54,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:02:54,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:02:54,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:02:54,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:02:54,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:02:54,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:02:54,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:02:54,408 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:02:54,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:02:54,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:02:54,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:02:54,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:02:54,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:02:54,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:02:54,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:02:54,412 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:02:54,434 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:02:54,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:02:54,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:02:54,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:02:54,436 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:02:54,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:02:54,437 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:02:54,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:02:54,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:02:54,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:02:54,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:02:54,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:02:54,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:02:54,438 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:02:54,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:02:54,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:02:54,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:02:54,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:02:54,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:02:54,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:02:54,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:02:54,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:02:54,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:02:54,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:02:54,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:02:54,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:02:54,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:02:54,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:02:54,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:02:54,443 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(reach_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 -> fb436d6177ee4ab6be6acbe7c4a410005aee8ab3 [2020-10-20 01:02:54,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:02:54,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:02:54,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:02:54,683 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:02:54,685 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:02:54,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/mod3.c [2020-10-20 01:02:54,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec146c1ec/066acaf46f8643d7b9ac04dd762d4fc3/FLAG89efc1f2e [2020-10-20 01:02:55,216 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:02:55,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/mod3.c [2020-10-20 01:02:55,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec146c1ec/066acaf46f8643d7b9ac04dd762d4fc3/FLAG89efc1f2e [2020-10-20 01:02:55,603 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec146c1ec/066acaf46f8643d7b9ac04dd762d4fc3 [2020-10-20 01:02:55,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:02:55,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:02:55,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:02:55,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:02:55,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:02:55,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:55,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14156067 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55, skipping insertion in model container [2020-10-20 01:02:55,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:55,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:02:55,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:02:55,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:02:55,905 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:02:55,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:02:55,940 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:02:55,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55 WrapperNode [2020-10-20 01:02:55,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:02:55,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:02:55,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:02:55,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:02:55,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:55,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:55,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:02:55,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:02:55,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:02:55,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:02:55,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:55,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:55,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:55,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:56,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:56,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:56,007 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (1/1) ... [2020-10-20 01:02:56,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:02:56,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:02:56,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:02:56,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:02:56,011 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (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 [2020-10-20 01:02:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:02:56,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:02:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:02:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:02:56,317 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:02:56,317 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-10-20 01:02:56,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:02:56 BoogieIcfgContainer [2020-10-20 01:02:56,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:02:56,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:02:56,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:02:56,325 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:02:56,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:02:55" (1/3) ... [2020-10-20 01:02:56,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f8bce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:02:56, skipping insertion in model container [2020-10-20 01:02:56,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:55" (2/3) ... [2020-10-20 01:02:56,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14f8bce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:02:56, skipping insertion in model container [2020-10-20 01:02:56,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:02:56" (3/3) ... [2020-10-20 01:02:56,329 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c [2020-10-20 01:02:56,341 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:02:56,351 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 01:02:56,370 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 01:02:56,404 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:02:56,405 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:02:56,405 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:02:56,405 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:02:56,405 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:02:56,406 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:02:56,406 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:02:56,406 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:02:56,431 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-20 01:02:56,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 01:02:56,438 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:02:56,441 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 01:02:56,442 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:02:56,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:02:56,448 INFO L82 PathProgramCache]: Analyzing trace with hash 890278313, now seen corresponding path program 1 times [2020-10-20 01:02:56,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:02:56,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853669238] [2020-10-20 01:02:56,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:02:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:02:56,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:02:56,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853669238] [2020-10-20 01:02:56,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:02:56,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 01:02:56,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907671632] [2020-10-20 01:02:56,619 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 01:02:56,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:02:56,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 01:02:56,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:02:56,632 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 2 states. [2020-10-20 01:02:56,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:02:56,647 INFO L93 Difference]: Finished difference Result 24 states and 31 transitions. [2020-10-20 01:02:56,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 01:02:56,648 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-20 01:02:56,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:02:56,662 INFO L225 Difference]: With dead ends: 24 [2020-10-20 01:02:56,662 INFO L226 Difference]: Without dead ends: 11 [2020-10-20 01:02:56,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 01:02:56,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-20 01:02:56,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-20 01:02:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-20 01:02:56,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-10-20 01:02:56,701 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 6 [2020-10-20 01:02:56,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:02:56,702 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-10-20 01:02:56,702 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 01:02:56,702 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-10-20 01:02:56,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 01:02:56,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:02:56,703 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:02:56,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:02:56,704 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:02:56,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:02:56,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1806865054, now seen corresponding path program 1 times [2020-10-20 01:02:56,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:02:56,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514076070] [2020-10-20 01:02:56,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:02:56,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:02:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:02:56,786 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514076070] [2020-10-20 01:02:56,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:02:56,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:02:56,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873299844] [2020-10-20 01:02:56,788 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:02:56,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:02:56,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:02:56,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:02:56,789 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand 3 states. [2020-10-20 01:02:56,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:02:56,831 INFO L93 Difference]: Finished difference Result 20 states and 26 transitions. [2020-10-20 01:02:56,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:02:56,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 01:02:56,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:02:56,835 INFO L225 Difference]: With dead ends: 20 [2020-10-20 01:02:56,835 INFO L226 Difference]: Without dead ends: 16 [2020-10-20 01:02:56,836 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:02:56,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-20 01:02:56,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-10-20 01:02:56,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 01:02:56,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-20 01:02:56,840 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2020-10-20 01:02:56,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:02:56,840 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-20 01:02:56,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:02:56,840 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-10-20 01:02:56,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 01:02:56,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:02:56,842 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:02:56,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:02:56,842 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:02:56,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:02:56,843 INFO L82 PathProgramCache]: Analyzing trace with hash 694220730, now seen corresponding path program 1 times [2020-10-20 01:02:56,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:02:56,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107012192] [2020-10-20 01:02:56,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:02:56,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:02:57,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:02:57,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107012192] [2020-10-20 01:02:57,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:02:57,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:02:57,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842700101] [2020-10-20 01:02:57,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:02:57,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:02:57,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:02:57,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:02:57,104 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2020-10-20 01:02:59,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:02:59,326 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2020-10-20 01:02:59,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:02:59,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 01:02:59,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:02:59,328 INFO L225 Difference]: With dead ends: 31 [2020-10-20 01:02:59,328 INFO L226 Difference]: Without dead ends: 18 [2020-10-20 01:02:59,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:02:59,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-20 01:02:59,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-10-20 01:02:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 01:02:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-10-20 01:02:59,334 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10 [2020-10-20 01:02:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:02:59,334 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-20 01:02:59,334 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:02:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-10-20 01:02:59,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 01:02:59,335 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:02:59,336 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:02:59,336 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:02:59,336 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:02:59,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:02:59,337 INFO L82 PathProgramCache]: Analyzing trace with hash -2105263274, now seen corresponding path program 1 times [2020-10-20 01:02:59,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:02:59,337 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298157869] [2020-10-20 01:02:59,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:02:59,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:02:59,479 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:02:59,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298157869] [2020-10-20 01:02:59,480 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:02:59,480 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:02:59,480 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372277656] [2020-10-20 01:02:59,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:02:59,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:02:59,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:02:59,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:02:59,482 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2020-10-20 01:03:01,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:03:01,676 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2020-10-20 01:03:01,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:03:01,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 01:03:01,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:03:01,677 INFO L225 Difference]: With dead ends: 33 [2020-10-20 01:03:01,677 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:03:01,678 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:03:01,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:03:01,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:03:01,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:03:01,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:03:01,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-20 01:03:01,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:03:01,679 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:03:01,680 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:03:01,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:03:01,680 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:03:01,680 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 01:03:01,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:03:01,722 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:03:01,722 INFO L274 CegarLoopResult]: For program point L25(lines 25 28) no Hoare annotation was computed. [2020-10-20 01:03:01,723 INFO L270 CegarLoopResult]: At program point L25-2(lines 18 31) the Hoare annotation is: (or (= 1 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~x~0 (let ((.cse2 (div ULTIMATE.start_main_~x~0 4294967296))) (let ((.cse1 (* .cse2 (- 4294967296)))) (let ((.cse0 (div (+ ULTIMATE.start_main_~x~0 .cse1) 3))) (+ (* 3 .cse0) (* 4294967296 (div (+ (* .cse0 (- 3)) ULTIMATE.start_main_~x~0 .cse1) 4294967296)) (* 4294967296 .cse2))))))) [2020-10-20 01:03:01,723 INFO L274 CegarLoopResult]: For program point L19(lines 19 30) no Hoare annotation was computed. [2020-10-20 01:03:01,723 INFO L274 CegarLoopResult]: For program point L9(lines 9 10) no Hoare annotation was computed. [2020-10-20 01:03:01,723 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 01:03:01,723 INFO L277 CegarLoopResult]: At program point L34(lines 14 35) the Hoare annotation is: true [2020-10-20 01:03:01,724 INFO L277 CegarLoopResult]: At program point L32(lines 32 33) the Hoare annotation is: true [2020-10-20 01:03:01,724 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:03:01,724 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:03:01,724 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:03:01,724 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 01:03:01,724 INFO L274 CegarLoopResult]: For program point L22(lines 22 29) no Hoare annotation was computed. [2020-10-20 01:03:01,724 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 31) no Hoare annotation was computed. [2020-10-20 01:03:01,725 INFO L274 CegarLoopResult]: For program point L18-3(lines 14 35) no Hoare annotation was computed. [2020-10-20 01:03:01,725 INFO L274 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-10-20 01:03:01,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:03:01 BoogieIcfgContainer [2020-10-20 01:03:01,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:03:01,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:03:01,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:03:01,745 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:03:01,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:02:56" (3/4) ... [2020-10-20 01:03:01,750 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:03:01,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-10-20 01:03:01,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-20 01:03:01,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:03:01,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:03:01,763 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:03:01,811 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:03:01,811 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:03:01,814 INFO L168 Benchmark]: Toolchain (without parser) took 6204.76 ms. Allocated memory was 34.6 MB in the beginning and 48.8 MB in the end (delta: 14.2 MB). Free memory was 15.6 MB in the beginning and 21.4 MB in the end (delta: -5.8 MB). Peak memory consumption was 8.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:03:01,815 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 33.0 MB. Free memory was 10.4 MB in the beginning and 10.4 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. [2020-10-20 01:03:01,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.65 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 14.7 MB in the beginning and 26.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:03:01,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.25 ms. Allocated memory is still 44.6 MB. Free memory was 26.0 MB in the beginning and 24.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:03:01,818 INFO L168 Benchmark]: Boogie Preprocessor took 29.60 ms. Allocated memory is still 44.6 MB. Free memory was 24.3 MB in the beginning and 22.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 01:03:01,819 INFO L168 Benchmark]: RCFGBuilder took 309.79 ms. Allocated memory was 44.6 MB in the beginning and 45.1 MB in the end (delta: 524.3 kB). Free memory was 22.9 MB in the beginning and 20.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:03:01,820 INFO L168 Benchmark]: TraceAbstraction took 5423.83 ms. Allocated memory was 45.1 MB in the beginning and 48.8 MB in the end (delta: 3.7 MB). Free memory was 19.6 MB in the beginning and 24.6 MB in the end (delta: -5.0 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 01:03:01,821 INFO L168 Benchmark]: Witness Printer took 66.71 ms. Allocated memory is still 48.8 MB. Free memory was 24.6 MB in the beginning and 21.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:03:01,826 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.79 ms. Allocated memory is still 33.0 MB. Free memory was 10.4 MB in the beginning and 10.4 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 325.65 ms. Allocated memory was 34.6 MB in the beginning and 44.6 MB in the end (delta: 10.0 MB). Free memory was 14.7 MB in the beginning and 26.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 38.25 ms. Allocated memory is still 44.6 MB. Free memory was 26.0 MB in the beginning and 24.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 29.60 ms. Allocated memory is still 44.6 MB. Free memory was 24.3 MB in the beginning and 22.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 309.79 ms. Allocated memory was 44.6 MB in the beginning and 45.1 MB in the end (delta: 524.3 kB). Free memory was 22.9 MB in the beginning and 20.0 MB in the end (delta: 2.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 5423.83 ms. Allocated memory was 45.1 MB in the beginning and 48.8 MB in the end (delta: 3.7 MB). Free memory was 19.6 MB in the beginning and 24.6 MB in the end (delta: -5.0 MB). There was no memory consumed. Max. memory is 14.3 GB. * Witness Printer took 66.71 ms. Allocated memory is still 48.8 MB. Free memory was 24.6 MB in the beginning and 21.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 == y || x <= 3 * ((x + x / 4294967296 * -4294967296) / 3) + 4294967296 * (((x + x / 4294967296 * -4294967296) / 3 * -3 + x + x / 4294967296 * -4294967296) / 4294967296) + 4294967296 * (x / 4294967296) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 11 SDslu, 44 SDs, 0 SdLazy, 38 SolverSat, 8 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=3, 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, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 7 NumberOfFragments, 47 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 2615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...