./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.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.v+cfa-reducer.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 98bd002f385acfbdc1d8e1dd1ff5f46b18e1e56e .................................................................................................................................................................................................................................................................................................................................................... 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 01:02:35,850 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:02:35,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:02:35,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:02:35,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:02:35,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:02:35,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:02:35,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:02:35,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:02:35,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:02:35,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:02:35,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:02:35,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:02:35,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:02:35,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:02:35,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:02:35,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:02:35,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:02:35,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:02:35,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:02:35,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:02:35,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:02:35,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:02:35,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:02:35,906 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:02:35,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:02:35,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:02:35,907 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:02:35,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:02:35,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:02:35,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:02:35,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:02:35,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:02:35,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:02:35,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:02:35,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:02:35,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:02:35,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:02:35,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:02:35,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:02:35,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:02:35,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:02:35,952 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:02:35,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:02:35,954 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:02:35,954 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:02:35,954 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:02:35,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:02:35,954 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:02:35,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:02:35,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:02:35,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:02:35,955 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:02:35,955 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:02:35,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:02:35,956 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:02:35,956 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:02:35,956 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:02:35,956 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:02:35,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:02:35,957 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:02:35,957 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:02:35,957 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:02:35,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:02:35,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:02:35,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:02:35,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:02:35,958 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:02:35,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:02:35,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:02:35,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:02:35,959 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 -> 98bd002f385acfbdc1d8e1dd1ff5f46b18e1e56e [2020-10-20 01:02:36,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:02:36,202 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:02:36,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:02:36,208 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:02:36,208 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:02:36,209 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2020-10-20 01:02:36,274 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d28fb5b/1a1667ac347742baa64f6d5d2f04aef9/FLAGb0fd45111 [2020-10-20 01:02:36,816 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:02:36,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/mod3.c.v+cfa-reducer.c [2020-10-20 01:02:36,824 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d28fb5b/1a1667ac347742baa64f6d5d2f04aef9/FLAGb0fd45111 [2020-10-20 01:02:37,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9d28fb5b/1a1667ac347742baa64f6d5d2f04aef9 [2020-10-20 01:02:37,258 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:02:37,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:02:37,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:02:37,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:02:37,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:02:37,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb43d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37, skipping insertion in model container [2020-10-20 01:02:37,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:02:37,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:02:37,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:02:37,556 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:02:37,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:02:37,637 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:02:37,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37 WrapperNode [2020-10-20 01:02:37,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:02:37,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:02:37,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:02:37,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:02:37,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:02:37,697 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:02:37,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:02:37,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:02:37,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (1/1) ... [2020-10-20 01:02:37,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:02:37,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:02:37,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:02:37,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:02:37,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (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 01:02:37,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:02:37,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:02:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:02:37,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:02:38,203 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:02:38,203 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 01:02:38,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:02:38 BoogieIcfgContainer [2020-10-20 01:02:38,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:02:38,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:02:38,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:02:38,214 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:02:38,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:02:37" (1/3) ... [2020-10-20 01:02:38,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cae314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:02:38, skipping insertion in model container [2020-10-20 01:02:38,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:02:37" (2/3) ... [2020-10-20 01:02:38,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35cae314 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:02:38, skipping insertion in model container [2020-10-20 01:02:38,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:02:38" (3/3) ... [2020-10-20 01:02:38,221 INFO L111 eAbstractionObserver]: Analyzing ICFG mod3.c.v+cfa-reducer.c [2020-10-20 01:02:38,234 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:02:38,245 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 01:02:38,262 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 01:02:38,293 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:02:38,294 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:02:38,294 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:02:38,295 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:02:38,295 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:02:38,297 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:02:38,297 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:02:38,297 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:02:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-10-20 01:02:38,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 01:02:38,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:02:38,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:02:38,321 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:02:38,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:02:38,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1804535397, now seen corresponding path program 1 times [2020-10-20 01:02:38,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:02:38,340 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335560514] [2020-10-20 01:02:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:02:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:02:38,548 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 01:02:38,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335560514] [2020-10-20 01:02:38,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:02:38,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 01:02:38,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649574180] [2020-10-20 01:02:38,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 01:02:38,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:02:38,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 01:02:38,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 01:02:38,580 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-10-20 01:02:38,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:02:38,634 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2020-10-20 01:02:38,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 01:02:38,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 01:02:38,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:02:38,648 INFO L225 Difference]: With dead ends: 30 [2020-10-20 01:02:38,648 INFO L226 Difference]: Without dead ends: 16 [2020-10-20 01:02:38,651 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 01:02:38,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-10-20 01:02:38,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 13. [2020-10-20 01:02:38,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-20 01:02:38,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-10-20 01:02:38,690 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 7 [2020-10-20 01:02:38,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:02:38,691 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-10-20 01:02:38,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 01:02:38,691 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-10-20 01:02:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 01:02:38,692 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:02:38,692 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:02:38,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:02:38,692 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:02:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:02:38,693 INFO L82 PathProgramCache]: Analyzing trace with hash -527269500, now seen corresponding path program 1 times [2020-10-20 01:02:38,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:02:38,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670156713] [2020-10-20 01:02:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:02:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:02:38,951 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 01:02:38,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670156713] [2020-10-20 01:02:38,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:02:38,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:02:38,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011911436] [2020-10-20 01:02:38,956 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:02:38,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:02:38,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:02:38,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:02:38,958 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 4 states. [2020-10-20 01:02:43,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:02:43,261 INFO L93 Difference]: Finished difference Result 31 states and 41 transitions. [2020-10-20 01:02:43,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:02:43,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-20 01:02:43,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:02:43,263 INFO L225 Difference]: With dead ends: 31 [2020-10-20 01:02:43,264 INFO L226 Difference]: Without dead ends: 18 [2020-10-20 01:02:43,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:02:43,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-20 01:02:43,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2020-10-20 01:02:43,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 01:02:43,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2020-10-20 01:02:43,270 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 10 [2020-10-20 01:02:43,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:02:43,270 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2020-10-20 01:02:43,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:02:43,270 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2020-10-20 01:02:43,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 01:02:43,271 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:02:43,271 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:02:43,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 01:02:43,272 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:02:43,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:02:43,272 INFO L82 PathProgramCache]: Analyzing trace with hash -473877953, now seen corresponding path program 1 times [2020-10-20 01:02:43,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:02:43,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772876009] [2020-10-20 01:02:43,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:02:43,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:02:43,473 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 01:02:43,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772876009] [2020-10-20 01:02:43,475 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:02:43,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 01:02:43,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297940814] [2020-10-20 01:02:43,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 01:02:43,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:02:43,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 01:02:43,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 01:02:43,479 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 4 states. [2020-10-20 01:02:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:02:47,770 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2020-10-20 01:02:47,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 01:02:47,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 01:02:47,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:02:47,772 INFO L225 Difference]: With dead ends: 33 [2020-10-20 01:02:47,772 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:02:47,773 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 01:02:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:02:47,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:02:47,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:02:47,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:02:47,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-20 01:02:47,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:02:47,774 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:02:47,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 01:02:47,775 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:02:47,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:02:47,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 01:02:47,778 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:02:47,837 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:02:47,838 INFO L274 CegarLoopResult]: For program point L27(lines 27 49) no Hoare annotation was computed. [2020-10-20 01:02:47,838 INFO L274 CegarLoopResult]: For program point L54(lines 54 76) no Hoare annotation was computed. [2020-10-20 01:02:47,838 INFO L277 CegarLoopResult]: At program point L75(lines 9 78) the Hoare annotation is: true [2020-10-20 01:02:47,838 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:02:47,839 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:02:47,839 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-10-20 01:02:47,846 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:02:47,847 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:02:47,847 INFO L274 CegarLoopResult]: For program point L18(lines 18 50) no Hoare annotation was computed. [2020-10-20 01:02:47,847 INFO L274 CegarLoopResult]: For program point L16(lines 16 77) no Hoare annotation was computed. [2020-10-20 01:02:47,850 INFO L270 CegarLoopResult]: At program point L47(lines 10 78) the Hoare annotation is: (or (<= ULTIMATE.start_main_~main__x~0 (let ((.cse2 (div ULTIMATE.start_main_~main__x~0 4294967296))) (let ((.cse0 (* .cse2 (- 4294967296)))) (let ((.cse1 (div (+ ULTIMATE.start_main_~main__x~0 .cse0) 3))) (+ (* 4294967296 (div (+ ULTIMATE.start_main_~main__x~0 .cse0 (* .cse1 (- 3))) 4294967296)) (* 4294967296 .cse2) (* 3 .cse1)))))) (= ULTIMATE.start_main_~main__y~0 1)) [2020-10-20 01:02:47,851 INFO L274 CegarLoopResult]: For program point L37(lines 37 48) no Hoare annotation was computed. [2020-10-20 01:02:47,851 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-20 01:02:47,851 INFO L274 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-10-20 01:02:47,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:02:47 BoogieIcfgContainer [2020-10-20 01:02:47,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:02:47,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:02:47,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:02:47,904 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:02:47,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:02:38" (3/4) ... [2020-10-20 01:02:47,916 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:02:47,937 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-20 01:02:47,937 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-20 01:02:47,937 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:02:47,937 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:02:47,994 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:02:47,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:02:47,997 INFO L168 Benchmark]: Toolchain (without parser) took 10736.77 ms. Allocated memory was 42.5 MB in the beginning and 47.2 MB in the end (delta: 4.7 MB). Free memory was 22.2 MB in the beginning and 19.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 7.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:02:48,003 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 32.0 MB. Free memory was 9.7 MB in the beginning and 9.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-20 01:02:48,004 INFO L168 Benchmark]: CACSL2BoogieTranslator took 370.91 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 21.3 MB in the beginning and 23.4 MB in the end (delta: -2.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:02:48,005 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.85 ms. Allocated memory is still 43.0 MB. Free memory was 23.4 MB in the beginning and 21.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:02:48,006 INFO L168 Benchmark]: Boogie Preprocessor took 46.09 ms. Allocated memory is still 43.0 MB. Free memory was 21.5 MB in the beginning and 20.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:02:48,006 INFO L168 Benchmark]: RCFGBuilder took 462.16 ms. Allocated memory was 43.0 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Free memory was 20.3 MB in the beginning and 25.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:02:48,007 INFO L168 Benchmark]: TraceAbstraction took 9693.66 ms. Allocated memory was 44.6 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Free memory was 24.7 MB in the beginning and 23.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:02:48,008 INFO L168 Benchmark]: Witness Printer took 90.81 ms. Allocated memory is still 47.2 MB. Free memory was 23.0 MB in the beginning and 19.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:02:48,012 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 32.0 MB. Free memory was 9.7 MB in the beginning and 9.7 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 370.91 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 21.3 MB in the beginning and 23.4 MB in the end (delta: -2.0 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 57.85 ms. Allocated memory is still 43.0 MB. Free memory was 23.4 MB in the beginning and 21.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 46.09 ms. Allocated memory is still 43.0 MB. Free memory was 21.5 MB in the beginning and 20.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 462.16 ms. Allocated memory was 43.0 MB in the beginning and 44.6 MB in the end (delta: 1.6 MB). Free memory was 20.3 MB in the beginning and 25.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 10.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 9693.66 ms. Allocated memory was 44.6 MB in the beginning and 47.2 MB in the end (delta: 2.6 MB). Free memory was 24.7 MB in the beginning and 23.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 14.3 GB. * Witness Printer took 90.81 ms. Allocated memory is still 47.2 MB. Free memory was 23.0 MB in the beginning and 19.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 10]: Loop Invariant Derived loop invariant: main__x <= 4294967296 * ((main__x + main__x / 4294967296 * -4294967296 + (main__x + main__x / 4294967296 * -4294967296) / 3 * -3) / 4294967296) + 4294967296 * (main__x / 4294967296) + 3 * ((main__x + main__x / 4294967296 * -4294967296) / 3) || main__y == 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 8.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 45 SDtfs, 14 SDslu, 45 SDs, 0 SdLazy, 40 SolverSat, 8 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 8.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=2, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 46 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2590 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...