./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loops-crafted-1/loopv1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -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/loops-crafted-1/loopv1.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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6137ae6c5e75243c6c9aef56cdee64df0d3ef347 ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 18:21:38,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 18:21:38,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 18:21:38,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 18:21:38,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 18:21:38,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 18:21:38,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 18:21:38,911 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 18:21:38,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 18:21:38,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 18:21:38,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 18:21:38,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 18:21:38,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 18:21:38,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 18:21:38,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 18:21:38,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 18:21:38,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 18:21:38,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 18:21:38,924 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 18:21:38,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 18:21:38,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 18:21:38,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 18:21:38,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 18:21:38,931 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 18:21:38,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 18:21:38,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 18:21:38,934 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 18:21:38,935 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 18:21:38,936 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 18:21:38,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 18:21:38,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 18:21:38,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 18:21:38,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 18:21:38,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 18:21:38,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 18:21:38,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 18:21:38,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 18:21:38,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 18:21:38,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 18:21:38,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 18:21:38,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 18:21:38,945 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 18:21:38,961 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 18:21:38,962 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 18:21:38,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 18:21:38,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 18:21:38,964 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 18:21:38,964 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 18:21:38,964 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 18:21:38,965 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 18:21:38,965 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 18:21:38,965 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 18:21:38,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 18:21:38,966 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 18:21:38,966 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 18:21:38,966 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 18:21:38,967 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 18:21:38,967 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 18:21:38,967 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 18:21:38,967 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 18:21:38,968 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 18:21:38,968 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 18:21:38,968 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 18:21:38,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 18:21:38,969 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 18:21:38,969 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 18:21:38,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 18:21:38,970 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 18:21:38,970 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 18:21:38,970 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 18:21:38,971 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 18:21:38,971 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6137ae6c5e75243c6c9aef56cdee64df0d3ef347 [2020-07-28 18:21:39,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 18:21:39,269 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 18:21:39,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 18:21:39,273 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 18:21:39,274 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 18:21:39,275 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/loopv1.c [2020-07-28 18:21:39,327 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85adca11b/9433062957514fd4ae3e778a75bd8404/FLAG28201d919 [2020-07-28 18:21:39,749 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 18:21:39,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/loopv1.c [2020-07-28 18:21:39,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85adca11b/9433062957514fd4ae3e778a75bd8404/FLAG28201d919 [2020-07-28 18:21:40,176 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/85adca11b/9433062957514fd4ae3e778a75bd8404 [2020-07-28 18:21:40,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 18:21:40,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 18:21:40,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 18:21:40,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 18:21:40,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 18:21:40,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7337b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40, skipping insertion in model container [2020-07-28 18:21:40,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 18:21:40,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 18:21:40,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:21:40,449 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 18:21:40,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 18:21:40,488 INFO L208 MainTranslator]: Completed translation [2020-07-28 18:21:40,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40 WrapperNode [2020-07-28 18:21:40,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 18:21:40,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 18:21:40,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 18:21:40,491 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 18:21:40,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 18:21:40,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 18:21:40,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 18:21:40,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 18:21:40,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (1/1) ... [2020-07-28 18:21:40,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 18:21:40,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 18:21:40,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 18:21:40,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 18:21:40,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (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 [2020-07-28 18:21:40,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 18:21:40,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 18:21:40,875 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 18:21:40,875 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-28 18:21:40,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:21:40 BoogieIcfgContainer [2020-07-28 18:21:40,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 18:21:40,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 18:21:40,881 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 18:21:40,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 18:21:40,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 06:21:40" (1/3) ... [2020-07-28 18:21:40,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bea5c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:21:40, skipping insertion in model container [2020-07-28 18:21:40,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 06:21:40" (2/3) ... [2020-07-28 18:21:40,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bea5c14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 06:21:40, skipping insertion in model container [2020-07-28 18:21:40,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:21:40" (3/3) ... [2020-07-28 18:21:40,889 INFO L109 eAbstractionObserver]: Analyzing ICFG loopv1.c [2020-07-28 18:21:40,899 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 18:21:40,907 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 18:21:40,923 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 18:21:40,957 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 18:21:40,958 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 18:21:40,958 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 18:21:40,958 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 18:21:40,958 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 18:21:40,959 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 18:21:40,959 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 18:21:40,959 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 18:21:40,981 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2020-07-28 18:21:40,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 18:21:40,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:21:40,989 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:21:40,989 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:21:40,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:21:40,997 INFO L82 PathProgramCache]: Analyzing trace with hash 1807274184, now seen corresponding path program 1 times [2020-07-28 18:21:41,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:21:41,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57003830] [2020-07-28 18:21:41,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:21:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:21:41,136 INFO L280 TraceCheckUtils]: 0: Hoare triple {16#true} ~SIZE~0 := 50000001; {16#true} is VALID [2020-07-28 18:21:41,137 INFO L280 TraceCheckUtils]: 1: Hoare triple {16#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~n~0, main_~i~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~j~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {16#true} is VALID [2020-07-28 18:21:41,137 INFO L280 TraceCheckUtils]: 2: Hoare triple {16#true} assume !!(main_~n~0 <= ~SIZE~0);main_~i~0 := 0;main_~j~0 := 0; {16#true} is VALID [2020-07-28 18:21:41,145 INFO L280 TraceCheckUtils]: 3: Hoare triple {16#true} assume !true; {17#false} is VALID [2020-07-28 18:21:41,145 INFO L280 TraceCheckUtils]: 4: Hoare triple {17#false} __VERIFIER_assert_#in~cond := (if 0 == (if main_~i~0 < 0 && 0 != main_~i~0 % 3 then main_~i~0 % 3 - 3 else main_~i~0 % 3) then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {17#false} is VALID [2020-07-28 18:21:41,146 INFO L280 TraceCheckUtils]: 5: Hoare triple {17#false} assume 0 == __VERIFIER_assert_~cond; {17#false} is VALID [2020-07-28 18:21:41,146 INFO L280 TraceCheckUtils]: 6: Hoare triple {17#false} assume !false; {17#false} is VALID [2020-07-28 18:21:41,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:21:41,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57003830] [2020-07-28 18:21:41,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:21:41,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 18:21:41,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29011181] [2020-07-28 18:21:41,158 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 18:21:41,159 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:21:41,163 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 18:21:41,195 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:21:41,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 18:21:41,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:21:41,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 18:21:41,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 18:21:41,209 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 2 states. [2020-07-28 18:21:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:21:41,263 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-07-28 18:21:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 18:21:41,264 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-07-28 18:21:41,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:21:41,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:21:41,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 25 transitions. [2020-07-28 18:21:41,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 18:21:41,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 25 transitions. [2020-07-28 18:21:41,275 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 25 transitions. [2020-07-28 18:21:41,323 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:21:41,333 INFO L225 Difference]: With dead ends: 21 [2020-07-28 18:21:41,333 INFO L226 Difference]: Without dead ends: 9 [2020-07-28 18:21:41,336 INFO L675 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 [2020-07-28 18:21:41,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-07-28 18:21:41,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-07-28 18:21:41,364 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:21:41,365 INFO L82 GeneralOperation]: Start isEquivalent. First operand 9 states. Second operand 9 states. [2020-07-28 18:21:41,366 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 9 states. [2020-07-28 18:21:41,366 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 9 states. [2020-07-28 18:21:41,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:21:41,369 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-07-28 18:21:41,369 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-07-28 18:21:41,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:21:41,370 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:21:41,370 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 9 states. [2020-07-28 18:21:41,370 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 9 states. [2020-07-28 18:21:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:21:41,372 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-07-28 18:21:41,373 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-07-28 18:21:41,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:21:41,373 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:21:41,374 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:21:41,374 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:21:41,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 18:21:41,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2020-07-28 18:21:41,378 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 7 [2020-07-28 18:21:41,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:21:41,378 INFO L479 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2020-07-28 18:21:41,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 18:21:41,379 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-07-28 18:21:41,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 18:21:41,379 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 18:21:41,380 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 18:21:41,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 18:21:41,381 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 18:21:41,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 18:21:41,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1806976274, now seen corresponding path program 1 times [2020-07-28 18:21:41,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 18:21:41,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446474897] [2020-07-28 18:21:41,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 18:21:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 18:21:41,563 INFO L280 TraceCheckUtils]: 0: Hoare triple {74#true} ~SIZE~0 := 50000001; {74#true} is VALID [2020-07-28 18:21:41,563 INFO L280 TraceCheckUtils]: 1: Hoare triple {74#true} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~n~0, main_~i~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~j~0;assume -2147483648 <= main_#t~nondet0 && main_#t~nondet0 <= 2147483647;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0; {74#true} is VALID [2020-07-28 18:21:41,564 INFO L280 TraceCheckUtils]: 2: Hoare triple {74#true} assume !!(main_~n~0 <= ~SIZE~0);main_~i~0 := 0;main_~j~0 := 0; {76#(and (<= ULTIMATE.start_main_~i~0 (* 3 (div ULTIMATE.start_main_~i~0 3))) (<= 0 ULTIMATE.start_main_~i~0))} is VALID [2020-07-28 18:21:41,566 INFO L280 TraceCheckUtils]: 3: Hoare triple {76#(and (<= ULTIMATE.start_main_~i~0 (* 3 (div ULTIMATE.start_main_~i~0 3))) (<= 0 ULTIMATE.start_main_~i~0))} assume !(main_~i~0 < main_~n~0); {76#(and (<= ULTIMATE.start_main_~i~0 (* 3 (div ULTIMATE.start_main_~i~0 3))) (<= 0 ULTIMATE.start_main_~i~0))} is VALID [2020-07-28 18:21:41,568 INFO L280 TraceCheckUtils]: 4: Hoare triple {76#(and (<= ULTIMATE.start_main_~i~0 (* 3 (div ULTIMATE.start_main_~i~0 3))) (<= 0 ULTIMATE.start_main_~i~0))} __VERIFIER_assert_#in~cond := (if 0 == (if main_~i~0 < 0 && 0 != main_~i~0 % 3 then main_~i~0 % 3 - 3 else main_~i~0 % 3) then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; {77#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} is VALID [2020-07-28 18:21:41,569 INFO L280 TraceCheckUtils]: 5: Hoare triple {77#(not (= 0 ULTIMATE.start___VERIFIER_assert_~cond))} assume 0 == __VERIFIER_assert_~cond; {75#false} is VALID [2020-07-28 18:21:41,570 INFO L280 TraceCheckUtils]: 6: Hoare triple {75#false} assume !false; {75#false} is VALID [2020-07-28 18:21:41,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 18:21:41,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446474897] [2020-07-28 18:21:41,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 18:21:41,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 18:21:41,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271219304] [2020-07-28 18:21:41,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-07-28 18:21:41,574 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 18:21:41,575 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 18:21:41,587 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:21:41,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 18:21:41,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 18:21:41,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 18:21:41,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 18:21:41,589 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand 4 states. [2020-07-28 18:21:41,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:21:41,662 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2020-07-28 18:21:41,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 18:21:41,663 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-07-28 18:21:41,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 18:21:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:21:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-28 18:21:41,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 18:21:41,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-28 18:21:41,666 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 10 transitions. [2020-07-28 18:21:41,686 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 18:21:41,686 INFO L225 Difference]: With dead ends: 9 [2020-07-28 18:21:41,686 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 18:21:41,688 INFO L675 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 [2020-07-28 18:21:41,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 18:21:41,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 18:21:41,688 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 18:21:41,688 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 18:21:41,689 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:21:41,689 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:21:41,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:21:41,690 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:21:41,690 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:21:41,690 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:21:41,690 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:21:41,690 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 18:21:41,690 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 18:21:41,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 18:21:41,691 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 18:21:41,691 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:21:41,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:21:41,691 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 18:21:41,691 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 18:21:41,691 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 18:21:41,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 18:21:41,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 18:21:41,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-07-28 18:21:41,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 18:21:41,693 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 18:21:41,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 18:21:41,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 18:21:41,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 18:21:41,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 18:21:41,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 18:21:41,721 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 18:21:41,721 INFO L271 CegarLoopResult]: At program point L31(lines 18 32) the Hoare annotation is: true [2020-07-28 18:21:41,722 INFO L268 CegarLoopResult]: For program point L25(lines 25 28) no Hoare annotation was computed. [2020-07-28 18:21:41,722 INFO L264 CegarLoopResult]: At program point L25-2(lines 23 29) the Hoare annotation is: (and (<= ULTIMATE.start_main_~i~0 (* 3 (div ULTIMATE.start_main_~i~0 3))) (<= 0 ULTIMATE.start_main_~i~0)) [2020-07-28 18:21:41,722 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-07-28 18:21:41,722 INFO L268 CegarLoopResult]: For program point L23-2(lines 23 29) no Hoare annotation was computed. [2020-07-28 18:21:41,722 INFO L268 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-07-28 18:21:41,722 INFO L271 CegarLoopResult]: At program point L11-2(lines 10 15) the Hoare annotation is: true [2020-07-28 18:21:41,723 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 18:21:41,723 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 18:21:41,723 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 18:21:41,724 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-07-28 18:21:41,724 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-07-28 18:21:41,728 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 18:21:41,729 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 18:21:41,729 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 18:21:41,729 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 18:21:41,729 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:21:41,730 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2020-07-28 18:21:41,730 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2020-07-28 18:21:41,730 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 18:21:41,730 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 18:21:41,730 WARN L170 areAnnotationChecker]: L23-2 has no Hoare annotation [2020-07-28 18:21:41,730 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 18:21:41,731 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 18:21:41,731 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 18:21:41,731 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2020-07-28 18:21:41,731 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-28 18:21:41,732 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2020-07-28 18:21:41,732 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 18:21:41,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 06:21:41 BoogieIcfgContainer [2020-07-28 18:21:41,744 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 18:21:41,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 18:21:41,745 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 18:21:41,745 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 18:21:41,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 06:21:40" (3/4) ... [2020-07-28 18:21:41,750 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 18:21:41,761 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-07-28 18:21:41,762 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 18:21:41,816 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 18:21:41,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 18:21:41,819 INFO L168 Benchmark]: Toolchain (without parser) took 1637.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -99.0 MB). Peak memory consumption was 46.2 MB. Max. memory is 11.5 GB. [2020-07-28 18:21:41,820 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 18:21:41,821 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.10 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:21:41,821 INFO L168 Benchmark]: Boogie Procedure Inliner took 92.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -198.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-28 18:21:41,822 INFO L168 Benchmark]: Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:21:41,823 INFO L168 Benchmark]: RCFGBuilder took 274.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2020-07-28 18:21:41,823 INFO L168 Benchmark]: TraceAbstraction took 863.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. [2020-07-28 18:21:41,824 INFO L168 Benchmark]: Witness Printer took 71.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2020-07-28 18:21:41,828 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.10 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 92.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -198.9 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 274.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 863.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 11.5 GB. * Witness Printer took 71.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.5 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: i <= 3 * (i / 3) && 0 <= i - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 2 SDslu, 4 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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...