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/loop-crafted/simple_vardep_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:35:12,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:35:12,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:35:12,286 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:35:12,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:35:12,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:35:12,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:35:12,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:35:12,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:35:12,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:35:12,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:35:12,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:35:12,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:35:12,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:35:12,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:35:12,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:35:12,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:35:12,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:35:12,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:35:12,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:35:12,304 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:35:12,305 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:35:12,306 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:35:12,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:35:12,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:35:12,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:35:12,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:35:12,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:35:12,310 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:35:12,311 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:35:12,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:35:12,312 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:35:12,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:35:12,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:35:12,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:35:12,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:35:12,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:35:12,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:35:12,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:35:12,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:35:12,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:35:12,318 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 [2019-10-07 13:35:12,332 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:35:12,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:35:12,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:35:12,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:35:12,334 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:35:12,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:35:12,334 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:35:12,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:35:12,335 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:35:12,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:35:12,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:35:12,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:35:12,335 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:35:12,336 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:35:12,336 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:35:12,336 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:35:12,336 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:35:12,336 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:35:12,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:35:12,337 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:35:12,337 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:35:12,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:35:12,337 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:35:12,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:35:12,338 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:35:12,338 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:35:12,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:35:12,338 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:35:12,339 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 [2019-10-07 13:35:12,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:35:12,647 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:35:12,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:35:12,652 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:35:12,652 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:35:12,654 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2019-10-07 13:35:12,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/301d69d20/5dc7b8d8112c4b658081db1bace66f4c/FLAGc61ed48f7 [2019-10-07 13:35:13,145 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:35:13,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-crafted/simple_vardep_2.c [2019-10-07 13:35:13,151 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/301d69d20/5dc7b8d8112c4b658081db1bace66f4c/FLAGc61ed48f7 [2019-10-07 13:35:13,567 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/301d69d20/5dc7b8d8112c4b658081db1bace66f4c [2019-10-07 13:35:13,577 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:35:13,579 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:35:13,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:35:13,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:35:13,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:35:13,584 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338e2a78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13, skipping insertion in model container [2019-10-07 13:35:13,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,593 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:35:13,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:35:13,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:35:13,755 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:35:13,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:35:13,780 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:35:13,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13 WrapperNode [2019-10-07 13:35:13,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:35:13,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:35:13,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:35:13,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:35:13,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (1/1) ... [2019-10-07 13:35:13,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:35:13,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:35:13,893 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:35:13,893 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:35:13,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (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 [2019-10-07 13:35:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:35:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:35:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:35:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:35:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:35:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:35:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:35:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:35:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:35:14,103 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:35:14,104 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:35:14,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:35:14 BoogieIcfgContainer [2019-10-07 13:35:14,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:35:14,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:35:14,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:35:14,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:35:14,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:35:13" (1/3) ... [2019-10-07 13:35:14,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1262dcd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:35:14, skipping insertion in model container [2019-10-07 13:35:14,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:35:13" (2/3) ... [2019-10-07 13:35:14,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1262dcd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:35:14, skipping insertion in model container [2019-10-07 13:35:14,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:35:14" (3/3) ... [2019-10-07 13:35:14,113 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_vardep_2.c [2019-10-07 13:35:14,121 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:35:14,128 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:35:14,139 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:35:14,164 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:35:14,164 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:35:14,164 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:35:14,164 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:35:14,164 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:35:14,165 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:35:14,165 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:35:14,165 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:35:14,185 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-07 13:35:14,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:35:14,191 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:35:14,192 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:35:14,195 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:35:14,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:35:14,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1847991872, now seen corresponding path program 1 times [2019-10-07 13:35:14,208 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:35:14,208 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:35:14,208 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:35:14,208 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:35:14,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:35:14,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:35:14,750 WARN L191 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 33 [2019-10-07 13:35:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:35:14,777 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:35:14,777 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:35:14,778 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-07 13:35:14,781 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-07 13:35:14,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-07 13:35:14,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:35:14,799 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2019-10-07 13:35:14,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:35:14,878 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2019-10-07 13:35:14,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:35:14,880 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-10-07 13:35:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:35:14,886 INFO L225 Difference]: With dead ends: 25 [2019-10-07 13:35:14,887 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:35:14,890 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:35:14,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:35:14,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:35:14,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:35:14,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:35:14,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-07 13:35:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:35:14,910 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:35:14,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-07 13:35:14,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:35:14,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:35:14,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:35:14,973 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-07 13:35:14,974 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:35:14,974 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:35:14,974 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:35:14,974 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:35:14,974 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:35:14,975 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2019-10-07 13:35:14,975 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 13 26) no Hoare annotation was computed. [2019-10-07 13:35:14,976 INFO L439 ceAbstractionStarter]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0)) (.cse1 (* 3 main_~i~0))) (and (<= .cse0 main_~j~0) (<= main_~j~0 .cse0) (<= .cse1 main_~k~0) (<= main_~k~0 .cse1))) [2019-10-07 13:35:14,977 INFO L439 ceAbstractionStarter]: At program point L23-1(lines 19 24) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0)) (.cse1 (* 3 main_~i~0))) (and (<= .cse0 main_~j~0) (<= main_~j~0 .cse0) (<= .cse1 main_~k~0) (<= main_~k~0 .cse1))) [2019-10-07 13:35:14,977 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2019-10-07 13:35:14,977 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 5 11) the Hoare annotation is: true [2019-10-07 13:35:14,978 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 5 11) no Hoare annotation was computed. [2019-10-07 13:35:14,978 INFO L443 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2019-10-07 13:35:14,978 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 9) no Hoare annotation was computed. [2019-10-07 13:35:14,978 INFO L443 ceAbstractionStarter]: For program point L7-2(lines 5 11) no Hoare annotation was computed. [2019-10-07 13:35:15,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:35:15 BoogieIcfgContainer [2019-10-07 13:35:15,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:35:15,003 INFO L168 Benchmark]: Toolchain (without parser) took 1423.57 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 101.0 MB in the beginning and 121.9 MB in the end (delta: -20.9 MB). Peak memory consumption was 36.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:35:15,004 INFO L168 Benchmark]: CDTParser took 2.61 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:35:15,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.88 ms. Allocated memory is still 143.7 MB. Free memory was 100.8 MB in the beginning and 91.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:35:15,006 INFO L168 Benchmark]: Boogie Preprocessor took 111.27 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 91.1 MB in the beginning and 179.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:35:15,007 INFO L168 Benchmark]: RCFGBuilder took 212.09 ms. Allocated memory is still 200.8 MB. Free memory was 179.5 MB in the beginning and 167.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. [2019-10-07 13:35:15,008 INFO L168 Benchmark]: TraceAbstraction took 894.24 ms. Allocated memory is still 200.8 MB. Free memory was 167.6 MB in the beginning and 121.9 MB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. [2019-10-07 13:35:15,012 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.61 ms. Allocated memory is still 143.7 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 201.88 ms. Allocated memory is still 143.7 MB. Free memory was 100.8 MB in the beginning and 91.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.27 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 91.1 MB in the beginning and 179.5 MB in the end (delta: -88.4 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 212.09 ms. Allocated memory is still 200.8 MB. Free memory was 179.5 MB in the beginning and 167.6 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 894.24 ms. Allocated memory is still 200.8 MB. Free memory was 167.6 MB in the beginning and 121.9 MB in the end (delta: 45.7 MB). Peak memory consumption was 45.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 Derived loop invariant: ((2 * i <= j && j <= 2 * i) && 3 * i <= k) && k <= 3 * i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 6 SDslu, 31 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 47 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 1197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...