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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/loops/array-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:03:20,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:03:20,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:03:20,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:03:20,374 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:03:20,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:03:20,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:03:20,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:03:20,400 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:03:20,403 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:03:20,404 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:03:20,406 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:03:20,406 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:03:20,408 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:03:20,410 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:03:20,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:03:20,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:03:20,413 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:03:20,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:03:20,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:03:20,423 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:03:20,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:03:20,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:03:20,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:03:20,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:03:20,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:03:20,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:03:20,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:03:20,446 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 [2019-10-15 03:03:20,478 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:03:20,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:03:20,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:03:20,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:03:20,483 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:03:20,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:03:20,483 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:03:20,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:03:20,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:03:20,484 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:03:20,484 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:03:20,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:03:20,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:03:20,486 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:03:20,487 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:03:20,487 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:03:20,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:03:20,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:03:20,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:03:20,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:03:20,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:03:20,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:03:20,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:03:20,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:03:20,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:03:20,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:03:20,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:03:20,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:03:20,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 03:03:20,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:03:20,872 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:03:20,876 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:03:20,877 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:03:20,878 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:03:20,878 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/array-1.c [2019-10-15 03:03:20,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b13226f/fc4d4f56169f4dca8a18dcd5e832e6d3/FLAGd69dc77ba [2019-10-15 03:03:21,457 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:03:21,458 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/array-1.c [2019-10-15 03:03:21,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b13226f/fc4d4f56169f4dca8a18dcd5e832e6d3/FLAGd69dc77ba [2019-10-15 03:03:21,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/41b13226f/fc4d4f56169f4dca8a18dcd5e832e6d3 [2019-10-15 03:03:21,819 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:03:21,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:03:21,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:21,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:03:21,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:03:21,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:03:21" (1/1) ... [2019-10-15 03:03:21,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a7327f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:21, skipping insertion in model container [2019-10-15 03:03:21,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:03:21" (1/1) ... [2019-10-15 03:03:21,836 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:03:21,854 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:03:22,047 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:22,050 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:03:22,070 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:03:22,172 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:03:22,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22 WrapperNode [2019-10-15 03:03:22,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:03:22,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:03:22,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:03:22,174 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:03:22,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (1/1) ... [2019-10-15 03:03:22,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (1/1) ... [2019-10-15 03:03:22,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (1/1) ... [2019-10-15 03:03:22,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (1/1) ... [2019-10-15 03:03:22,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (1/1) ... [2019-10-15 03:03:22,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (1/1) ... [2019-10-15 03:03:22,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (1/1) ... [2019-10-15 03:03:22,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:03:22,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:03:22,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:03:22,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:03:22,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (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 [2019-10-15 03:03:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:03:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:03:22,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:03:22,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:03:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:03:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:03:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 03:03:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:03:22,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:03:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:03:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:03:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:03:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:03:22,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:03:22,696 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:03:22,696 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:03:22,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:22 BoogieIcfgContainer [2019-10-15 03:03:22,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:03:22,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:03:22,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:03:22,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:03:22,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:03:21" (1/3) ... [2019-10-15 03:03:22,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29fd55a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:22, skipping insertion in model container [2019-10-15 03:03:22,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:03:22" (2/3) ... [2019-10-15 03:03:22,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29fd55a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:03:22, skipping insertion in model container [2019-10-15 03:03:22,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:03:22" (3/3) ... [2019-10-15 03:03:22,707 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c [2019-10-15 03:03:22,716 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:03:22,723 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:03:22,735 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:03:22,762 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:03:22,762 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:03:22,762 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:03:22,763 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:03:22,763 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:03:22,763 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:03:22,763 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:03:22,764 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:03:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-15 03:03:22,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:03:22,788 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:22,789 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:22,791 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:22,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:22,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1684679511, now seen corresponding path program 1 times [2019-10-15 03:03:22,806 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:22,807 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587301173] [2019-10-15 03:03:22,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:22,807 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:22,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:23,073 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587301173] [2019-10-15 03:03:23,074 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:03:23,075 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:03:23,075 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756940895] [2019-10-15 03:03:23,080 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:03:23,080 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:23,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:03:23,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:03:23,095 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-10-15 03:03:23,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:23,126 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-15 03:03:23,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:03:23,128 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-15 03:03:23,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:23,136 INFO L225 Difference]: With dead ends: 29 [2019-10-15 03:03:23,136 INFO L226 Difference]: Without dead ends: 12 [2019-10-15 03:03:23,139 INFO L600 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 [2019-10-15 03:03:23,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-15 03:03:23,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-15 03:03:23,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-15 03:03:23,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-15 03:03:23,176 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-15 03:03:23,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:23,176 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-15 03:03:23,176 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:03:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-15 03:03:23,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:03:23,177 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:03:23,178 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:03:23,178 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:03:23,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:03:23,179 INFO L82 PathProgramCache]: Analyzing trace with hash -734883470, now seen corresponding path program 1 times [2019-10-15 03:03:23,179 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:03:23,179 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559421321] [2019-10-15 03:03:23,179 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:23,180 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:03:23,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:03:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:23,528 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 20 [2019-10-15 03:03:23,634 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:23,634 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559421321] [2019-10-15 03:03:23,635 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133815137] [2019-10-15 03:03:23,635 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:03:23,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 17 conjunts are in the unsatisfiable core [2019-10-15 03:03:23,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:03:23,804 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:03:23,804 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 03:03:23,813 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-15 03:03:23,813 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 03:03:23,960 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2019-10-15 03:03:23,961 INFO L567 ElimStorePlain]: treesize reduction 32, result has 72.2 percent of original size [2019-10-15 03:03:23,987 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 41 treesize of output 37 [2019-10-15 03:03:23,989 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-10-15 03:03:24,001 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 41 treesize of output 37 [2019-10-15 03:03:24,002 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 03:03:24,055 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 03:03:24,056 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-2 vars, End of recursive call: and 2 xjuncts. [2019-10-15 03:03:24,057 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:235, output treesize:45 [2019-10-15 03:03:24,125 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,157 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-10-15 03:03:24,158 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-15 03:03:24,176 INFO L567 ElimStorePlain]: treesize reduction 16, result has 15.8 percent of original size [2019-10-15 03:03:24,176 INFO L464 ElimStorePlain]: Eliminatee |#memory_int| vanished before elimination [2019-10-15 03:03:24,176 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-15 03:03:24,177 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 6 variables, input treesize:31, output treesize:3 [2019-10-15 03:03:24,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:24,238 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:03:24,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,302 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,303 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 03:03:24,352 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 40 [2019-10-15 03:03:24,380 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2019-10-15 03:03:24,381 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-15 03:03:24,422 INFO L567 ElimStorePlain]: treesize reduction 10, result has 69.7 percent of original size [2019-10-15 03:03:24,422 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 03:03:24,587 WARN L191 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2019-10-15 03:03:24,589 INFO L567 ElimStorePlain]: treesize reduction 141, result has 54.7 percent of original size [2019-10-15 03:03:24,601 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2019-10-15 03:03:24,617 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2019-10-15 03:03:24,618 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-10-15 03:03:24,630 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-15 03:03:24,631 INFO L496 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-15 03:03:24,675 INFO L567 ElimStorePlain]: treesize reduction 134, result has 16.8 percent of original size [2019-10-15 03:03:24,676 INFO L464 ElimStorePlain]: Eliminatee v_prenex_43 vanished before elimination [2019-10-15 03:03:24,676 INFO L464 ElimStorePlain]: Eliminatee v_prenex_54 vanished before elimination [2019-10-15 03:03:24,676 INFO L464 ElimStorePlain]: Eliminatee v_prenex_13 vanished before elimination [2019-10-15 03:03:24,676 INFO L464 ElimStorePlain]: Eliminatee v_prenex_17 vanished before elimination [2019-10-15 03:03:24,678 INFO L496 ElimStorePlain]: Start of recursive call 1: 18 dim-0 vars, 6 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-15 03:03:24,679 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 24 variables, input treesize:330, output treesize:27 [2019-10-15 03:03:24,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:03:24,731 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [685866786] [2019-10-15 03:03:24,778 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:03:24,778 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:03:24,786 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:03:24,798 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:03:24,799 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:03:24,946 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-15 03:03:25,197 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-15 03:03:25,240 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 03:03:25,250 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:03:25,786 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:03:25,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 9] total 21 [2019-10-15 03:03:25,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924971133] [2019-10-15 03:03:25,789 INFO L442 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-10-15 03:03:25,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:03:25,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-10-15 03:03:25,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2019-10-15 03:03:25,791 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 21 states. [2019-10-15 03:03:26,130 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 35 [2019-10-15 03:03:26,312 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2019-10-15 03:03:26,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:03:26,505 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2019-10-15 03:03:26,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-10-15 03:03:26,505 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 11 [2019-10-15 03:03:26,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:03:26,506 INFO L225 Difference]: With dead ends: 16 [2019-10-15 03:03:26,506 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:03:26,508 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702 [2019-10-15 03:03:26,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:03:26,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:03:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:03:26,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:03:26,510 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-15 03:03:26,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:03:26,510 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:03:26,510 INFO L463 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-10-15 03:03:26,510 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:03:26,510 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:03:26,719 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:03:26,725 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:03:27,007 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-10-15 03:03:27,161 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-10-15 03:03:27,163 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-15 03:03:27,164 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:27,164 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:03:27,164 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= 0 |#NULL.offset|)) [2019-10-15 03:03:27,164 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:03:27,164 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:03:27,165 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 11 29) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-15 03:03:27,165 INFO L439 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0)) (let ((.cse0 (select |#memory_int| |main_~#array~0.base|))) (and (= 0 |main_~#array~0.offset|) (= 0 (select |#valid| 0)) (= |main_#t~mem5| (select .cse0 |main_~#array~0.offset|)) (let ((.cse1 (= main_~SIZE~0 1)) (.cse2 (select .cse0 (+ (* (mod (+ main_~j~0 4294967295) 4294967296) 4) |main_~#array~0.offset|))) (.cse3 (= main_~j~0 1))) (or (and .cse1 (= .cse2 main_~menor~0) .cse3) (and .cse1 (< main_~menor~0 .cse2) .cse3)))))) [2019-10-15 03:03:27,165 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-10-15 03:03:27,165 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 29) no Hoare annotation was computed. [2019-10-15 03:03:27,166 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (let ((.cse1 (= 0 |main_~#array~0.offset|)) (.cse2 (= 0 (select |#valid| 0))) (.cse0 (= main_~SIZE~0 1))) (or (and .cse0 .cse1 .cse2 (= main_~j~0 0)) (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0)) (and .cse1 .cse2 (let ((.cse3 (select (select |#memory_int| |main_~#array~0.base|) (+ (* (mod (+ main_~j~0 4294967295) 4294967296) 4) |main_~#array~0.offset|))) (.cse4 (= main_~j~0 1))) (or (and .cse0 (= .cse3 main_~menor~0) .cse4) (and .cse0 (< main_~menor~0 .cse3) .cse4)))))) [2019-10-15 03:03:27,166 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:03:27,166 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:03:27,166 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:03:27,166 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:03:27,167 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:03:27,167 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:03:27,175 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,176 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:03:27,177 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:03:27,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,184 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:03:27,185 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:03:27,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:03:27 BoogieIcfgContainer [2019-10-15 03:03:27,190 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:03:27,202 INFO L168 Benchmark]: Toolchain (without parser) took 5381.27 ms. Allocated memory was 138.4 MB in the beginning and 246.4 MB in the end (delta: 108.0 MB). Free memory was 103.6 MB in the beginning and 218.5 MB in the end (delta: -114.9 MB). Peak memory consumption was 120.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:27,203 INFO L168 Benchmark]: CDTParser took 1.48 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:03:27,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.33 ms. Allocated memory was 138.4 MB in the beginning and 199.8 MB in the end (delta: 61.3 MB). Free memory was 103.1 MB in the beginning and 179.1 MB in the end (delta: -76.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:27,205 INFO L168 Benchmark]: Boogie Preprocessor took 41.45 ms. Allocated memory is still 199.8 MB. Free memory was 179.1 MB in the beginning and 177.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:27,205 INFO L168 Benchmark]: RCFGBuilder took 482.81 ms. Allocated memory is still 199.8 MB. Free memory was 177.4 MB in the beginning and 159.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:27,206 INFO L168 Benchmark]: TraceAbstraction took 4498.34 ms. Allocated memory was 199.8 MB in the beginning and 246.4 MB in the end (delta: 46.7 MB). Free memory was 158.4 MB in the beginning and 218.5 MB in the end (delta: -60.1 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:03:27,210 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.48 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 351.33 ms. Allocated memory was 138.4 MB in the beginning and 199.8 MB in the end (delta: 61.3 MB). Free memory was 103.1 MB in the beginning and 179.1 MB in the end (delta: -76.0 MB). Peak memory consumption was 23.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.45 ms. Allocated memory is still 199.8 MB. Free memory was 179.1 MB in the beginning and 177.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 482.81 ms. Allocated memory is still 199.8 MB. Free memory was 177.4 MB in the beginning and 159.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4498.34 ms. Allocated memory was 199.8 MB in the beginning and 246.4 MB in the end (delta: 46.7 MB). Free memory was 158.4 MB in the beginning and 218.5 MB in the end (delta: -60.1 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - 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 [2019-10-15 03:03:27,220 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,220 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,220 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,221 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,221 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:03:27,221 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:03:27,222 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,222 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:03:27,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:03:27,223 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((SIZE == 1 && 0 == array) && 0 == \valid[0]) && j == 0) || !(#NULL <= 0)) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || !(0 <= #NULL)) || !(#NULL <= 0)) || ((0 == array && 0 == \valid[0]) && (((SIZE == 1 && unknown-#memory_int-unknown[array][(j + 4294967295) % 4294967296 * 4 + array] == menor) && j == 1) || ((SIZE == 1 && menor < unknown-#memory_int-unknown[array][(j + 4294967295) % 4294967296 * 4 + array]) && j == 1))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 4.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, HoareTripleCheckerStatistics: 20 SDtfs, 10 SDslu, 47 SDs, 0 SdLazy, 57 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 7 LocationsWithAnnotation, 9 PreInvPairs, 12 NumberOfFragments, 239 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 1970 SizeOfPredicates, 13 NumberOfNonLiveVariables, 61 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 472, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 20, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME[ms]: 154, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 12, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 2, TOOLS_QUANTIFIERELIM_APPLICATIONS: 16, TOOLS_QUANTIFIERELIM_TIME[ms]: 158, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 116, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 22, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 17, DOMAIN_JOIN_TIME[ms]: 217, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 3, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME[ms]: 2, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME[ms]: 3, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 2, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 164, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 163, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 44, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 43, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 17, DAG_COMPRESSION_PROCESSED_NODES: 57, DAG_COMPRESSION_RETAINED_NODES: 42, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...