java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 16:11:24,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 16:11:24,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 16:11:24,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 16:11:24,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 16:11:24,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 16:11:24,483 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 16:11:24,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 16:11:24,487 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 16:11:24,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 16:11:24,489 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 16:11:24,490 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 16:11:24,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 16:11:24,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 16:11:24,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 16:11:24,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 16:11:24,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 16:11:24,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 16:11:24,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 16:11:24,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 16:11:24,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 16:11:24,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 16:11:24,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 16:11:24,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 16:11:24,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 16:11:24,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 16:11:24,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 16:11:24,507 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 16:11:24,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 16:11:24,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 16:11:24,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 16:11:24,510 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 16:11:24,511 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 16:11:24,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 16:11:24,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 16:11:24,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 16:11:24,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 16:11:24,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 16:11:24,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 16:11:24,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 16:11:24,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 16:11:24,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-16 16:11:24,541 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 16:11:24,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 16:11:24,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 16:11:24,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 16:11:24,543 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 16:11:24,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 16:11:24,544 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 16:11:24,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 16:11:24,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 16:11:24,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 16:11:24,546 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 16:11:24,546 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 16:11:24,546 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 16:11:24,546 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 16:11:24,547 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 16:11:24,547 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 16:11:24,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 16:11:24,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 16:11:24,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 16:11:24,548 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 16:11:24,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 16:11:24,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:11:24,549 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 16:11:24,549 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 16:11:24,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 16:11:24,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 16:11:24,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 16:11:24,550 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 16:11:24,550 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 16:11:24,587 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 16:11:24,604 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 16:11:24,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 16:11:24,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 16:11:24,610 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 16:11:24,611 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2019-09-16 16:11:24,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a685df2b1/1da517d045c0428a8ff3f807138999a7/FLAG52714417a [2019-09-16 16:11:25,190 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 16:11:25,191 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-1.c [2019-09-16 16:11:25,197 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a685df2b1/1da517d045c0428a8ff3f807138999a7/FLAG52714417a [2019-09-16 16:11:25,547 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a685df2b1/1da517d045c0428a8ff3f807138999a7 [2019-09-16 16:11:25,561 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 16:11:25,563 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 16:11:25,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 16:11:25,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 16:11:25,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 16:11:25,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:11:25" (1/1) ... [2019-09-16 16:11:25,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575488dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:25, skipping insertion in model container [2019-09-16 16:11:25,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:11:25" (1/1) ... [2019-09-16 16:11:25,579 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 16:11:25,599 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 16:11:25,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:11:25,856 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 16:11:25,892 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:11:26,080 INFO L192 MainTranslator]: Completed translation [2019-09-16 16:11:26,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26 WrapperNode [2019-09-16 16:11:26,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 16:11:26,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 16:11:26,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 16:11:26,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 16:11:26,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (1/1) ... [2019-09-16 16:11:26,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (1/1) ... [2019-09-16 16:11:26,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (1/1) ... [2019-09-16 16:11:26,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (1/1) ... [2019-09-16 16:11:26,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (1/1) ... [2019-09-16 16:11:26,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (1/1) ... [2019-09-16 16:11:26,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (1/1) ... [2019-09-16 16:11:26,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 16:11:26,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 16:11:26,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 16:11:26,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 16:11:26,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:11:26,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 16:11:26,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 16:11:26,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-16 16:11:26,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 16:11:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 16:11:26,221 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 16:11:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 16:11:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 16:11:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 16:11:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 16:11:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 16:11:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 16:11:26,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 16:11:26,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 16:11:26,476 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 16:11:26,476 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-16 16:11:26,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:11:26 BoogieIcfgContainer [2019-09-16 16:11:26,478 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 16:11:26,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 16:11:26,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 16:11:26,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 16:11:26,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 04:11:25" (1/3) ... [2019-09-16 16:11:26,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32631a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:11:26, skipping insertion in model container [2019-09-16 16:11:26,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:11:26" (2/3) ... [2019-09-16 16:11:26,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32631a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:11:26, skipping insertion in model container [2019-09-16 16:11:26,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:11:26" (3/3) ... [2019-09-16 16:11:26,504 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c [2019-09-16 16:11:26,526 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 16:11:26,544 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 16:11:26,561 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 16:11:26,591 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-16 16:11:26,591 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 16:11:26,591 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-16 16:11:26,591 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 16:11:26,592 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 16:11:26,592 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 16:11:26,592 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 16:11:26,592 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 16:11:26,592 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 16:11:26,607 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-09-16 16:11:26,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 16:11:26,612 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:11:26,613 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:11:26,615 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:11:26,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:11:26,619 INFO L82 PathProgramCache]: Analyzing trace with hash 202253298, now seen corresponding path program 1 times [2019-09-16 16:11:26,620 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:11:26,621 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:11:26,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:26,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:11:26,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:26,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:11:26,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:11:26,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:11:26,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 16:11:26,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 16:11:26,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 16:11:26,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 16:11:26,794 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2019-09-16 16:11:26,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:11:26,813 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2019-09-16 16:11:26,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 16:11:26,814 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-09-16 16:11:26,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:11:26,822 INFO L225 Difference]: With dead ends: 35 [2019-09-16 16:11:26,822 INFO L226 Difference]: Without dead ends: 15 [2019-09-16 16:11:26,826 INFO L636 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 [2019-09-16 16:11:26,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-09-16 16:11:26,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-09-16 16:11:26,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-09-16 16:11:26,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-09-16 16:11:26,858 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 12 [2019-09-16 16:11:26,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:11:26,858 INFO L475 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-09-16 16:11:26,858 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 16:11:26,858 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-09-16 16:11:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 16:11:26,859 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:11:26,859 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:11:26,860 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:11:26,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:11:26,860 INFO L82 PathProgramCache]: Analyzing trace with hash -112667363, now seen corresponding path program 1 times [2019-09-16 16:11:26,861 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:11:26,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:11:26,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:26,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:11:26,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:26,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:11:26,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:11:26,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:11:26,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:11:26,996 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:11:26,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:11:26,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:11:26,997 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2019-09-16 16:11:27,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:11:27,034 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2019-09-16 16:11:27,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:11:27,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-09-16 16:11:27,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:11:27,036 INFO L225 Difference]: With dead ends: 24 [2019-09-16 16:11:27,037 INFO L226 Difference]: Without dead ends: 18 [2019-09-16 16:11:27,038 INFO L636 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 [2019-09-16 16:11:27,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-16 16:11:27,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2019-09-16 16:11:27,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-09-16 16:11:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2019-09-16 16:11:27,043 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 12 [2019-09-16 16:11:27,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:11:27,044 INFO L475 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2019-09-16 16:11:27,044 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:11:27,044 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2019-09-16 16:11:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-16 16:11:27,045 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:11:27,045 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:11:27,045 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:11:27,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:11:27,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1912057964, now seen corresponding path program 1 times [2019-09-16 16:11:27,046 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:11:27,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:11:27,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:27,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:11:27,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:11:27,506 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 20 [2019-09-16 16:11:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:11:27,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 16:11:27,708 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-16 16:11:27,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-16 16:11:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:11:27,770 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-16 16:11:27,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-16 16:11:27,864 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2019-09-16 16:11:27,865 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-16 16:11:27,890 INFO L567 ElimStorePlain]: treesize reduction 36, result has 34.5 percent of original size [2019-09-16 16:11:27,890 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_7| vanished before elimination [2019-09-16 16:11:27,891 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-16 16:11:27,891 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:59, output treesize:5 [2019-09-16 16:11:27,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-16 16:11:28,027 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-16 16:11:28,027 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2019-09-16 16:11:28,029 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-16 16:11:28,031 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-09-16 16:11:28,064 INFO L567 ElimStorePlain]: treesize reduction 16, result has 36.0 percent of original size [2019-09-16 16:11:28,072 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-16 16:11:28,072 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:31, output treesize:3 [2019-09-16 16:11:28,074 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-16 16:11:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:11:28,116 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-16 16:11:28,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2019-09-16 16:11:28,119 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-16 16:11:28,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-16 16:11:28,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-09-16 16:11:28,120 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 14 states. [2019-09-16 16:11:28,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:11:28,545 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-09-16 16:11:28,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-16 16:11:28,546 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2019-09-16 16:11:28,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:11:28,547 INFO L225 Difference]: With dead ends: 29 [2019-09-16 16:11:28,547 INFO L226 Difference]: Without dead ends: 21 [2019-09-16 16:11:28,549 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=104, Invalid=448, Unknown=0, NotChecked=0, Total=552 [2019-09-16 16:11:28,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-16 16:11:28,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2019-09-16 16:11:28,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-09-16 16:11:28,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-09-16 16:11:28,558 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2019-09-16 16:11:28,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:11:28,559 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-09-16 16:11:28,559 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-16 16:11:28,559 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-09-16 16:11:28,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-16 16:11:28,560 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:11:28,560 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:11:28,561 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:11:28,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:11:28,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1414989691, now seen corresponding path program 1 times [2019-09-16 16:11:28,562 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:11:28,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:11:28,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:28,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:11:28,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:11:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:11:28,754 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:11:28,755 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-16 16:11:28,755 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-16 16:11:28,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:11:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:11:28,805 INFO L256 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-16 16:11:28,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-16 16:11:28,832 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:11:28,835 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-16 16:11:28,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2019-09-16 16:11:28,836 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 16:11:28,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 16:11:28,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-16 16:11:28,837 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 6 states. [2019-09-16 16:11:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:11:28,854 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2019-09-16 16:11:28,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 16:11:28,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2019-09-16 16:11:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:11:28,855 INFO L225 Difference]: With dead ends: 21 [2019-09-16 16:11:28,855 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 16:11:28,856 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-16 16:11:28,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 16:11:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 16:11:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 16:11:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 16:11:28,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2019-09-16 16:11:28,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:11:28,857 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 16:11:28,857 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 16:11:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 16:11:28,857 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 16:11:28,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-16 16:11:28,985 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-16 16:11:28,985 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-16 16:11:28,985 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-16 16:11:28,986 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-16 16:11:28,986 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-16 16:11:28,986 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-16 16:11:28,986 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-16 16:11:28,986 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: true [2019-09-16 16:11:28,986 INFO L439 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (and (= main_~SIZE~0 1) (<= main_~menor~0 |main_#t~mem5|) (exists ((main_~j~0 Int)) (let ((.cse0 (mod main_~j~0 4294967296))) (and (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* 4 .cse0) |main_~#array~0.offset|))) (< .cse0 1) (<= .cse0 2147483647))))) [2019-09-16 16:11:28,987 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-09-16 16:11:28,987 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2019-09-16 16:11:28,987 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 23) no Hoare annotation was computed. [2019-09-16 16:11:28,987 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 24) no Hoare annotation was computed. [2019-09-16 16:11:28,987 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (let ((.cse0 (= main_~SIZE~0 1))) (or (and .cse0 (exists ((main_~j~0 Int)) (let ((.cse1 (mod main_~j~0 4294967296))) (and (<= main_~menor~0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* 4 .cse1) |main_~#array~0.offset|))) (< .cse1 1) (<= .cse1 2147483647)))) (= main_~j~0 1)) (and .cse0 (= 0 |main_~#array~0.offset|) (= main_~j~0 0)))) [2019-09-16 16:11:28,987 INFO L443 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2019-09-16 16:11:28,988 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 29) no Hoare annotation was computed. [2019-09-16 16:11:28,988 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-16 16:11:28,988 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-16 16:11:28,988 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-16 16:11:28,988 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-16 16:11:28,989 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-16 16:11:28,989 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-16 16:11:28,997 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:28,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:28,998 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,000 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-16 16:11:29,006 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,007 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,007 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,007 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-16 16:11:29,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 04:11:29 BoogieIcfgContainer [2019-09-16 16:11:29,010 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 16:11:29,012 INFO L168 Benchmark]: Toolchain (without parser) took 3448.97 ms. Allocated memory was 130.0 MB in the beginning and 218.1 MB in the end (delta: 88.1 MB). Free memory was 86.1 MB in the beginning and 109.6 MB in the end (delta: -23.4 MB). Peak memory consumption was 64.6 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:29,013 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 16:11:29,014 INFO L168 Benchmark]: CACSL2BoogieTranslator took 518.93 ms. Allocated memory was 130.0 MB in the beginning and 199.2 MB in the end (delta: 69.2 MB). Free memory was 85.9 MB in the beginning and 176.6 MB in the end (delta: -90.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:29,015 INFO L168 Benchmark]: Boogie Preprocessor took 59.51 ms. Allocated memory is still 199.2 MB. Free memory was 176.6 MB in the beginning and 174.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:29,016 INFO L168 Benchmark]: RCFGBuilder took 334.01 ms. Allocated memory is still 199.2 MB. Free memory was 174.2 MB in the beginning and 160.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:29,017 INFO L168 Benchmark]: TraceAbstraction took 2523.33 ms. Allocated memory was 199.2 MB in the beginning and 218.1 MB in the end (delta: 18.9 MB). Free memory was 160.3 MB in the beginning and 109.6 MB in the end (delta: 50.7 MB). Peak memory consumption was 69.6 MB. Max. memory is 7.1 GB. [2019-09-16 16:11:29,021 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 130.0 MB. Free memory was 104.2 MB in the beginning and 103.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 518.93 ms. Allocated memory was 130.0 MB in the beginning and 199.2 MB in the end (delta: 69.2 MB). Free memory was 85.9 MB in the beginning and 176.6 MB in the end (delta: -90.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.51 ms. Allocated memory is still 199.2 MB. Free memory was 176.6 MB in the beginning and 174.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 334.01 ms. Allocated memory is still 199.2 MB. Free memory was 174.2 MB in the beginning and 160.3 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2523.33 ms. Allocated memory was 199.2 MB in the beginning and 218.1 MB in the end (delta: 18.9 MB). Free memory was 160.3 MB in the beginning and 109.6 MB in the end (delta: 50.7 MB). Peak memory consumption was 69.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 19]: Loop Invariant [2019-09-16 16:11:29,030 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,031 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,031 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,031 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-16 16:11:29,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,032 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~j~0,QUANTIFIED] [2019-09-16 16:11:29,032 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((SIZE == 1 && (\exists main_~j~0 : int :: (menor <= unknown-#memory_int-unknown[array][4 * (main_~j~0 % 4294967296) + array] && main_~j~0 % 4294967296 < 1) && main_~j~0 % 4294967296 <= 2147483647)) && j == 1) || ((SIZE == 1 && 0 == array) && j == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 52 SDtfs, 22 SDslu, 81 SDs, 0 SdLazy, 76 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 80 HoareAnnotationTreeSize, 11 FomulaSimplifications, 7 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 38 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 84 ConstructedInterpolants, 3 QuantifiedInterpolants, 4774 SizeOfPredicates, 9 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...