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-lit/jm2006.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:59:18,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:59:18,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:59:19,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:59:19,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:59:19,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:59:19,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:59:19,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:59:19,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:59:19,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:59:19,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:59:19,013 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:59:19,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:59:19,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:59:19,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:59:19,017 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:59:19,017 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:59:19,018 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:59:19,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:59:19,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:59:19,023 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:59:19,024 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:59:19,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:59:19,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:59:19,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 22:59:19,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:59:19,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:59:19,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:59:19,038 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 [2019-10-13 22:59:19,051 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:59:19,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:59:19,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:59:19,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:59:19,053 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:59:19,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:59:19,054 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:59:19,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:59:19,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:59:19,054 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:59:19,054 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:59:19,055 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:59:19,055 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:59:19,055 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:59:19,055 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:59:19,055 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:59:19,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:59:19,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:59:19,056 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:59:19,056 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:59:19,056 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:59:19,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:59:19,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:59:19,057 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:59:19,057 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:59:19,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:59:19,057 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:59:19,058 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:59:19,058 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 [2019-10-13 22:59:19,343 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:59:19,355 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:59:19,359 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:59:19,360 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:59:19,361 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:59:19,361 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006.i [2019-10-13 22:59:19,419 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb4a9298/438e789b63cf4aa3990b2fe7aac82ce8/FLAG4667929ed [2019-10-13 22:59:19,841 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:59:19,842 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/jm2006.i [2019-10-13 22:59:19,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb4a9298/438e789b63cf4aa3990b2fe7aac82ce8/FLAG4667929ed [2019-10-13 22:59:20,236 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aeb4a9298/438e789b63cf4aa3990b2fe7aac82ce8 [2019-10-13 22:59:20,248 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:59:20,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:59:20,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:20,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:59:20,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:59:20,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46029d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20, skipping insertion in model container [2019-10-13 22:59:20,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,268 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:59:20,288 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:59:20,471 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:20,475 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:59:20,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:59:20,505 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:59:20,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20 WrapperNode [2019-10-13 22:59:20,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:59:20,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:59:20,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:59:20,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:59:20,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (1/1) ... [2019-10-13 22:59:20,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:59:20,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:59:20,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:59:20,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:59:20,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (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 [2019-10-13 22:59:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:59:20,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:59:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 22:59:20,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 22:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 22:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 22:59:20,681 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:59:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:59:20,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:59:20,884 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:59:20,884 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 22:59:20,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:20 BoogieIcfgContainer [2019-10-13 22:59:20,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:59:20,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:59:20,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:59:20,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:59:20,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:59:20" (1/3) ... [2019-10-13 22:59:20,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746d907a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:20, skipping insertion in model container [2019-10-13 22:59:20,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:59:20" (2/3) ... [2019-10-13 22:59:20,891 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@746d907a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:59:20, skipping insertion in model container [2019-10-13 22:59:20,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:59:20" (3/3) ... [2019-10-13 22:59:20,893 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006.i [2019-10-13 22:59:20,908 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:59:20,917 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:59:20,933 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:59:20,961 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:59:20,961 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:59:20,962 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:59:20,962 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:59:20,962 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:59:20,962 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:59:20,962 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:59:20,963 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:59:20,980 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-10-13 22:59:20,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-13 22:59:20,986 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:20,987 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:20,989 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:20,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:20,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1111158856, now seen corresponding path program 1 times [2019-10-13 22:59:21,005 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:21,006 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160130976] [2019-10-13 22:59:21,006 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:21,006 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:21,007 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:21,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:21,456 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 19 [2019-10-13 22:59:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:21,576 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160130976] [2019-10-13 22:59:21,577 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:59:21,577 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-13 22:59:21,578 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944361784] [2019-10-13 22:59:21,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 22:59:21,584 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:21,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 22:59:21,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-13 22:59:21,605 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 7 states. [2019-10-13 22:59:21,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:21,819 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2019-10-13 22:59:21,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-13 22:59:21,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2019-10-13 22:59:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:21,832 INFO L225 Difference]: With dead ends: 42 [2019-10-13 22:59:21,832 INFO L226 Difference]: Without dead ends: 14 [2019-10-13 22:59:21,836 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2019-10-13 22:59:21,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-10-13 22:59:21,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-10-13 22:59:21,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-13 22:59:21,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2019-10-13 22:59:21,875 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 12 [2019-10-13 22:59:21,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:21,876 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2019-10-13 22:59:21,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 22:59:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2019-10-13 22:59:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 22:59:21,877 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:21,878 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:21,878 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:21,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:21,879 INFO L82 PathProgramCache]: Analyzing trace with hash -274266705, now seen corresponding path program 1 times [2019-10-13 22:59:21,879 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:21,879 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872707716] [2019-10-13 22:59:21,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:21,880 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:21,880 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:21,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:22,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:22,081 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872707716] [2019-10-13 22:59:22,083 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [965013809] [2019-10-13 22:59:22,083 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 [2019-10-13 22:59:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:22,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 18 conjunts are in the unsatisfiable core [2019-10-13 22:59:22,151 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:22,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 22:59:22,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:22,295 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:22,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:22,390 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [941575914] [2019-10-13 22:59:22,423 INFO L162 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-10-13 22:59:22,424 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:59:22,448 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:59:22,462 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:59:22,463 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:59:22,519 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-13 22:59:22,781 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-13 22:59:22,817 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-13 22:59:22,824 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 22:59:22,824 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 22:59:22,824 INFO L193 IcfgInterpreter]: Reachable states at location L22 satisfy 86#(and (<= main_~i~0 2147483647) (<= 0 main_~j~0) (= main_~i~0 main_~j~0) (<= main_~x~0 2147483647) (<= 0 main_~i~0) (= main_~x~0 0) (<= main_~y~0 2147483647) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 22:59:22,825 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 110#true [2019-10-13 22:59:22,825 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= main_~i~0 2147483647) (<= 0 (+ main_~i~0 2147483648)) (<= 0 (+ main_~j~0 2147483648)) (<= main_~j~0 2147483647)) [2019-10-13 22:59:22,825 INFO L193 IcfgInterpreter]: Reachable states at location L17-3 satisfy 81#(and (<= main_~i~0 2147483647) (<= 0 main_~j~0) (<= main_~x~0 2147483647) (<= 0 main_~i~0) (= main_~x~0 0) (<= main_~y~0 2147483647) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 22:59:22,826 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 96#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-13 22:59:22,826 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 76#(and (<= main_~i~0 2147483647) (<= 0 main_~j~0) (<= main_~x~0 2147483647) (<= 0 main_~i~0) (<= main_~y~0 2147483647) (<= main_~j~0 2147483647)) [2019-10-13 22:59:22,826 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 106#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-13 22:59:22,827 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-13 22:59:22,827 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-13 22:59:22,827 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 115#true [2019-10-13 22:59:22,827 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 22:59:22,828 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 101#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-13 22:59:22,828 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 91#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| 1))) [2019-10-13 22:59:23,108 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 22:59:23,109 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8] total 22 [2019-10-13 22:59:23,109 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674713086] [2019-10-13 22:59:23,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-10-13 22:59:23,113 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:23,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-10-13 22:59:23,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2019-10-13 22:59:23,116 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 22 states. [2019-10-13 22:59:23,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:23,596 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-13 22:59:23,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-10-13 22:59:23,597 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 13 [2019-10-13 22:59:23,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:23,598 INFO L225 Difference]: With dead ends: 25 [2019-10-13 22:59:23,598 INFO L226 Difference]: Without dead ends: 17 [2019-10-13 22:59:23,599 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=169, Invalid=761, Unknown=0, NotChecked=0, Total=930 [2019-10-13 22:59:23,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-10-13 22:59:23,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-10-13 22:59:23,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-10-13 22:59:23,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2019-10-13 22:59:23,605 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 13 [2019-10-13 22:59:23,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:23,605 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2019-10-13 22:59:23,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-10-13 22:59:23,605 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2019-10-13 22:59:23,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-13 22:59:23,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:59:23,606 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:59:23,810 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:23,811 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:59:23,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:59:23,812 INFO L82 PathProgramCache]: Analyzing trace with hash 562976120, now seen corresponding path program 2 times [2019-10-13 22:59:23,812 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:59:23,813 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175572710] [2019-10-13 22:59:23,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:23,813 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:59:23,813 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:59:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:59:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-13 22:59:24,010 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175572710] [2019-10-13 22:59:24,011 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [671885598] [2019-10-13 22:59:24,011 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:24,046 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-13 22:59:24,046 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-13 22:59:24,048 WARN L254 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 31 conjunts are in the unsatisfiable core [2019-10-13 22:59:24,050 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 22:59:24,188 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:24,189 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 22:59:24,367 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:59:24,367 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1560624289] [2019-10-13 22:59:24,368 INFO L162 IcfgInterpreter]: Started Sifa with 13 locations of interest [2019-10-13 22:59:24,369 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 22:59:24,369 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 22:59:24,369 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 22:59:24,370 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 22:59:24,382 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-13 22:59:24,481 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-13 22:59:24,511 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-13 22:59:24,514 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 22:59:24,515 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 22:59:24,515 INFO L193 IcfgInterpreter]: Reachable states at location L22 satisfy 85#(and (<= main_~i~0 2147483647) (<= 0 main_~j~0) (= main_~i~0 main_~j~0) (<= main_~x~0 2147483647) (<= 0 main_~i~0) (= main_~x~0 0) (<= main_~y~0 2147483647) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 22:59:24,515 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 109#true [2019-10-13 22:59:24,516 INFO L193 IcfgInterpreter]: Reachable states at location L14 satisfy 38#(and (<= main_~i~0 2147483647) (<= 0 (+ main_~i~0 2147483648)) (<= 0 (+ main_~j~0 2147483648)) (<= main_~j~0 2147483647)) [2019-10-13 22:59:24,516 INFO L193 IcfgInterpreter]: Reachable states at location L17-3 satisfy 80#(and (<= main_~i~0 2147483647) (<= 0 main_~j~0) (<= main_~x~0 2147483647) (<= 0 main_~i~0) (= main_~x~0 0) (<= main_~y~0 2147483647) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0)) [2019-10-13 22:59:24,517 INFO L193 IcfgInterpreter]: Reachable states at location L4 satisfy 95#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-13 22:59:24,517 INFO L193 IcfgInterpreter]: Reachable states at location L17-2 satisfy 75#(and (<= main_~i~0 2147483647) (<= 0 main_~j~0) (<= main_~x~0 2147483647) (<= 0 main_~i~0) (<= main_~y~0 2147483647) (<= main_~j~0 2147483647)) [2019-10-13 22:59:24,517 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 105#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-13 22:59:24,517 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-13 22:59:24,518 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-13 22:59:24,518 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 114#true [2019-10-13 22:59:24,518 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 22:59:24,518 INFO L193 IcfgInterpreter]: Reachable states at location L5 satisfy 100#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-13 22:59:24,519 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 90#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0))) [2019-10-13 22:59:24,824 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-13 22:59:24,824 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11, 8] total 29 [2019-10-13 22:59:24,825 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039008815] [2019-10-13 22:59:24,826 INFO L442 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-10-13 22:59:24,826 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:59:24,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-10-13 22:59:24,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=685, Unknown=0, NotChecked=0, Total=812 [2019-10-13 22:59:24,827 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 29 states. [2019-10-13 22:59:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:59:25,431 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2019-10-13 22:59:25,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-13 22:59:25,432 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 16 [2019-10-13 22:59:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:59:25,432 INFO L225 Difference]: With dead ends: 20 [2019-10-13 22:59:25,432 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 22:59:25,434 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 338 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=286, Invalid=1274, Unknown=0, NotChecked=0, Total=1560 [2019-10-13 22:59:25,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 22:59:25,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 22:59:25,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 22:59:25,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 22:59:25,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-13 22:59:25,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:59:25,435 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 22:59:25,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-10-13 22:59:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 22:59:25,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 22:59:25,640 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 22:59:25,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 22:59:25,796 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-13 22:59:25,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:25,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:59:25,797 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 22:59:25,797 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:59:25,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 22:59:25,797 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 25) the Hoare annotation is: true [2019-10-13 22:59:25,797 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 25) no Hoare annotation was computed. [2019-10-13 22:59:25,798 INFO L439 ceAbstractionStarter]: At program point L22(line 22) the Hoare annotation is: (or (and (= main_~i~0 main_~j~0) (<= 0 main_~i~0) (<= 0 main_~y~0) (<= main_~j~0 2147483647) (<= main_~x~0 0) (<= 0 main_~x~0) (<= main_~y~0 0)) (and (= main_~y~0 0) (= main_~i~0 main_~x~0) (= main_~i~0 0))) [2019-10-13 22:59:25,798 INFO L443 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2019-10-13 22:59:25,799 INFO L439 ceAbstractionStarter]: At program point L17-2(lines 17 20) the Hoare annotation is: (let ((.cse1 (+ main_~i~0 main_~y~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= 0 main_~j~0) (<= main_~i~0 2147483647) (<= main_~x~0 2147483647) (<= 0 main_~i~0) (<= main_~y~0 2147483647) (<= .cse0 .cse1) (<= .cse1 .cse0) (<= main_~j~0 2147483647))) [2019-10-13 22:59:25,799 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-10-13 22:59:25,799 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 10 25) no Hoare annotation was computed. [2019-10-13 22:59:25,799 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 25) no Hoare annotation was computed. [2019-10-13 22:59:25,799 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 22:59:25,800 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 22:59:25,800 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 22:59:25,800 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 22:59:25,800 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 22:59:25,801 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 22:59:25,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:59:25 BoogieIcfgContainer [2019-10-13 22:59:25,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 22:59:25,837 INFO L168 Benchmark]: Toolchain (without parser) took 5585.15 ms. Allocated memory was 142.1 MB in the beginning and 291.5 MB in the end (delta: 149.4 MB). Free memory was 99.7 MB in the beginning and 257.1 MB in the end (delta: -157.4 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:25,838 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 22:59:25,838 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.33 ms. Allocated memory is still 142.1 MB. Free memory was 99.5 MB in the beginning and 89.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:25,839 INFO L168 Benchmark]: Boogie Preprocessor took 115.71 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 89.8 MB in the beginning and 178.3 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:25,843 INFO L168 Benchmark]: RCFGBuilder took 263.81 ms. Allocated memory is still 199.8 MB. Free memory was 178.3 MB in the beginning and 165.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:25,846 INFO L168 Benchmark]: TraceAbstraction took 4946.03 ms. Allocated memory was 199.8 MB in the beginning and 291.5 MB in the end (delta: 91.8 MB). Free memory was 165.1 MB in the beginning and 257.1 MB in the end (delta: -92.0 MB). Peak memory consumption was 132.2 MB. Max. memory is 7.1 GB. [2019-10-13 22:59:25,851 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.33 ms. Allocated memory is still 142.1 MB. Free memory was 99.5 MB in the beginning and 89.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.71 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 89.8 MB in the beginning and 178.3 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 263.81 ms. Allocated memory is still 199.8 MB. Free memory was 178.3 MB in the beginning and 165.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4946.03 ms. Allocated memory was 199.8 MB in the beginning and 291.5 MB in the end (delta: 91.8 MB). Free memory was 165.1 MB in the beginning and 257.1 MB in the end (delta: -92.0 MB). Peak memory consumption was 132.2 MB. Max. memory is 7.1 GB. * 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: 17]: Loop Invariant Derived loop invariant: ((((((0 <= j && i <= 2147483647) && x <= 2147483647) && 0 <= i) && y <= 2147483647) && x + j <= i + y) && i + y <= x + j) && j <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Result: SAFE, OverallTime: 4.8s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 34 SDtfs, 77 SDslu, 237 SDs, 0 SdLazy, 271 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 20 NumberOfFragments, 71 HoareAnnotationTreeSize, 11 FomulaSimplifications, 58 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 281 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 8352 SizeOfPredicates, 14 NumberOfNonLiveVariables, 99 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 1/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 556, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 46, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 24, TOOLS_POST_TIME[ms]: 13, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME[ms]: 6, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 38, TOOLS_QUANTIFIERELIM_TIME[ms]: 12, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 2, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 52, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 40, DOMAIN_JOIN_TIME[ms]: 297, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 4, DOMAIN_WIDEN_TIME[ms]: 99, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME[ms]: 28, DOMAIN_ISBOTTOM_APPLICATIONS: 2, DOMAIN_ISBOTTOM_TIME[ms]: 3, LOOP_SUMMARIZER_APPLICATIONS: 2, LOOP_SUMMARIZER_CACHE_MISSES: 2, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 263, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 263, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 8, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 7, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 4, DAG_COMPRESSION_TIME[ms]: 18, DAG_COMPRESSION_PROCESSED_NODES: 138, DAG_COMPRESSION_RETAINED_NODES: 90, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...