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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/loops/insertion_sort-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 21:07:01,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 21:07:01,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 21:07:01,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 21:07:01,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 21:07:01,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 21:07:01,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 21:07:01,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 21:07:01,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 21:07:01,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 21:07:01,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 21:07:01,148 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 21:07:01,149 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 21:07:01,150 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 21:07:01,151 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 21:07:01,152 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 21:07:01,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 21:07:01,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 21:07:01,155 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 21:07:01,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 21:07:01,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 21:07:01,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 21:07:01,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 21:07:01,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 21:07:01,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 21:07:01,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 21:07:01,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 21:07:01,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 21:07:01,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 21:07:01,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 21:07:01,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 21:07:01,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 21:07:01,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 21:07:01,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 21:07:01,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 21:07:01,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 21:07:01,172 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 21:07:01,186 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 21:07:01,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 21:07:01,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 21:07:01,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 21:07:01,187 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 21:07:01,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 21:07:01,188 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 21:07:01,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 21:07:01,188 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 21:07:01,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 21:07:01,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 21:07:01,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 21:07:01,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 21:07:01,189 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 21:07:01,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 21:07:01,189 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 21:07:01,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 21:07:01,190 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 21:07:01,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 21:07:01,190 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 21:07:01,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 21:07:01,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 21:07:01,191 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 21:07:01,191 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 21:07:01,191 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 21:07:01,191 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 21:07:01,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 21:07:01,192 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 21:07:01,192 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-13 21:07:01,473 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 21:07:01,485 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 21:07:01,488 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 21:07:01,490 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 21:07:01,490 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 21:07:01,491 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/insertion_sort-2.c [2019-10-13 21:07:01,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3489f7ce/16ef52d5350c43478cb744751943c032/FLAG3ec1f656a [2019-10-13 21:07:02,000 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 21:07:02,000 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/insertion_sort-2.c [2019-10-13 21:07:02,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3489f7ce/16ef52d5350c43478cb744751943c032/FLAG3ec1f656a [2019-10-13 21:07:02,401 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3489f7ce/16ef52d5350c43478cb744751943c032 [2019-10-13 21:07:02,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 21:07:02,412 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 21:07:02,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 21:07:02,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 21:07:02,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 21:07:02,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,421 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@349bc271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02, skipping insertion in model container [2019-10-13 21:07:02,421 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,428 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 21:07:02,445 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 21:07:02,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:07:02,681 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 21:07:02,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 21:07:02,723 INFO L192 MainTranslator]: Completed translation [2019-10-13 21:07:02,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02 WrapperNode [2019-10-13 21:07:02,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 21:07:02,724 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 21:07:02,724 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 21:07:02,724 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 21:07:02,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (1/1) ... [2019-10-13 21:07:02,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 21:07:02,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 21:07:02,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 21:07:02,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 21:07:02,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (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 21:07:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 21:07:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 21:07:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 21:07:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 21:07:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 21:07:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 21:07:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-13 21:07:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 21:07:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 21:07:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 21:07:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 21:07:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 21:07:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 21:07:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 21:07:03,169 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 21:07:03,169 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-13 21:07:03,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:07:03 BoogieIcfgContainer [2019-10-13 21:07:03,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 21:07:03,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 21:07:03,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 21:07:03,190 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 21:07:03,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:07:02" (1/3) ... [2019-10-13 21:07:03,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256de649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:07:03, skipping insertion in model container [2019-10-13 21:07:03,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:07:02" (2/3) ... [2019-10-13 21:07:03,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@256de649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:07:03, skipping insertion in model container [2019-10-13 21:07:03,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:07:03" (3/3) ... [2019-10-13 21:07:03,197 INFO L109 eAbstractionObserver]: Analyzing ICFG insertion_sort-2.c [2019-10-13 21:07:03,219 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 21:07:03,235 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 21:07:03,248 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 21:07:03,278 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 21:07:03,279 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 21:07:03,279 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 21:07:03,279 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 21:07:03,279 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 21:07:03,279 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 21:07:03,279 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 21:07:03,280 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 21:07:03,294 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2019-10-13 21:07:03,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:07:03,299 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:07:03,300 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:07:03,302 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:07:03,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:07:03,307 INFO L82 PathProgramCache]: Analyzing trace with hash 637757472, now seen corresponding path program 1 times [2019-10-13 21:07:03,316 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:07:03,317 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215579346] [2019-10-13 21:07:03,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:07:03,317 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:07:03,318 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:07:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:07:03,445 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 21:07:03,445 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215579346] [2019-10-13 21:07:03,446 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:07:03,447 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-13 21:07:03,447 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758008061] [2019-10-13 21:07:03,451 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:07:03,452 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:07:03,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:07:03,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:07:03,470 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states. [2019-10-13 21:07:03,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:07:03,493 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2019-10-13 21:07:03,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:07:03,495 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-13 21:07:03,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:07:03,502 INFO L225 Difference]: With dead ends: 50 [2019-10-13 21:07:03,503 INFO L226 Difference]: Without dead ends: 23 [2019-10-13 21:07:03,506 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:07:03,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-10-13 21:07:03,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-10-13 21:07:03,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-13 21:07:03,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2019-10-13 21:07:03,543 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2019-10-13 21:07:03,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:07:03,543 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2019-10-13 21:07:03,544 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:07:03,544 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2019-10-13 21:07:03,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-13 21:07:03,545 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:07:03,545 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:07:03,545 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:07:03,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:07:03,546 INFO L82 PathProgramCache]: Analyzing trace with hash -962501754, now seen corresponding path program 1 times [2019-10-13 21:07:03,547 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:07:03,547 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463449710] [2019-10-13 21:07:03,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:07:03,547 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:07:03,548 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:07:03,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:07:03,783 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 21:07:03,783 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463449710] [2019-10-13 21:07:03,784 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 21:07:03,786 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-13 21:07:03,786 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064085359] [2019-10-13 21:07:03,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-13 21:07:03,789 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-13 21:07:03,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-13 21:07:03,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-13 21:07:03,790 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 5 states. [2019-10-13 21:07:03,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:07:03,879 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2019-10-13 21:07:03,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-13 21:07:03,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-10-13 21:07:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:07:03,882 INFO L225 Difference]: With dead ends: 41 [2019-10-13 21:07:03,882 INFO L226 Difference]: Without dead ends: 29 [2019-10-13 21:07:03,884 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-10-13 21:07:03,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-13 21:07:03,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2019-10-13 21:07:03,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-10-13 21:07:03,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2019-10-13 21:07:03,898 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 13 [2019-10-13 21:07:03,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:07:03,898 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2019-10-13 21:07:03,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-13 21:07:03,899 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2019-10-13 21:07:03,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-13 21:07:03,901 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 21:07:03,901 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 21:07:03,902 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 21:07:03,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:07:03,903 INFO L82 PathProgramCache]: Analyzing trace with hash 513665657, now seen corresponding path program 1 times [2019-10-13 21:07:03,903 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-13 21:07:03,904 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391177249] [2019-10-13 21:07:03,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:07:03,905 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 21:07:03,905 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 21:07:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:07:04,621 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 21:07:04,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391177249] [2019-10-13 21:07:04,622 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945911481] [2019-10-13 21:07:04,623 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 21:07:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 21:07:04,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2019-10-13 21:07:04,734 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 21:07:04,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,010 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-10-13 21:07:05,015 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 27 [2019-10-13 21:07:05,016 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:07:05,035 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:07:05,037 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-10-13 21:07:05,037 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:30 [2019-10-13 21:07:05,090 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:07:05,091 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2019-10-13 21:07:05,093 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-13 21:07:05,095 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:07:05,095 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:07:05,096 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:3 [2019-10-13 21:07:05,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,139 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 21:07:05,140 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 21:07:05,266 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,279 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 43 treesize of output 37 [2019-10-13 21:07:05,320 INFO L341 Elim1Store]: treesize reduction 10, result has 73.0 percent of original size [2019-10-13 21:07:05,321 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 99 treesize of output 107 [2019-10-13 21:07:05,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,330 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,331 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,335 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,337 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,338 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,339 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,341 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,344 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,348 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,351 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,352 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,353 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,357 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,358 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,360 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,363 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,364 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,371 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,372 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,373 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,376 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,382 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2019-10-13 21:07:05,402 INFO L567 ElimStorePlain]: treesize reduction 139, result has 4.8 percent of original size [2019-10-13 21:07:05,403 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:07:05,411 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-10-13 21:07:05,412 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-13 21:07:05,412 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:45, output treesize:10 [2019-10-13 21:07:05,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 21:07:05,510 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 21:07:05,511 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1169638800] [2019-10-13 21:07:05,517 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 20 [2019-10-13 21:07:05,558 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-13 21:07:05,559 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-13 21:07:05,646 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-13 21:07:05,648 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 16 root evaluator evaluations with a maximum evaluation depth of 0. Performed 16 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 26 variables. [2019-10-13 21:07:05,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 21:07:05,652 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-13 21:07:05,694 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-13 21:07:05,694 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-13 21:07:05,695 INFO L553 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2019-10-13 21:07:05,696 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-13 21:07:05,696 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-13 21:07:05,697 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [13, 12, 12] total 27 [2019-10-13 21:07:05,697 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229712743] [2019-10-13 21:07:05,697 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-13 21:07:05,698 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-13 21:07:05,698 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-13 21:07:05,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-13 21:07:05,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:07:05,700 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 2 states. [2019-10-13 21:07:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 21:07:05,704 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2019-10-13 21:07:05,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-13 21:07:05,704 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-10-13 21:07:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 21:07:05,705 INFO L225 Difference]: With dead ends: 24 [2019-10-13 21:07:05,705 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 21:07:05,707 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-13 21:07:05,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 21:07:05,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 21:07:05,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 21:07:05,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 21:07:05,708 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-10-13 21:07:05,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 21:07:05,709 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 21:07:05,709 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-13 21:07:05,709 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 21:07:05,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 21:07:05,912 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 21:07:05,916 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 21:07:05,968 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:07:05,968 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:07:05,968 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:07:05,968 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 21:07:05,968 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 21:07:05,969 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 21:07:05,969 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 21:07:05,969 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 26) no Hoare annotation was computed. [2019-10-13 21:07:05,969 INFO L443 ceAbstractionStarter]: For program point L23-2(lines 23 24) no Hoare annotation was computed. [2019-10-13 21:07:05,969 INFO L439 ceAbstractionStarter]: At program point L23-3(lines 23 24) the Hoare annotation is: (and (<= main_~SIZE~0 (+ (* 4294967296 (div main_~SIZE~0 4294967296)) 1)) (<= main_~j~0 1) (= 1 main_~k~0) (< 0 (+ (div main_~j~0 4294967296) 1))) [2019-10-13 21:07:05,969 INFO L443 ceAbstractionStarter]: For program point L23-4(lines 23 24) no Hoare annotation was computed. [2019-10-13 21:07:05,969 INFO L443 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-10-13 21:07:05,970 INFO L443 ceAbstractionStarter]: For program point L17-3(lines 17 20) no Hoare annotation was computed. [2019-10-13 21:07:05,970 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 26) no Hoare annotation was computed. [2019-10-13 21:07:05,970 INFO L439 ceAbstractionStarter]: At program point L17-5(lines 17 20) the Hoare annotation is: false [2019-10-13 21:07:05,970 INFO L443 ceAbstractionStarter]: For program point L17-6(lines 17 20) no Hoare annotation was computed. [2019-10-13 21:07:05,970 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 26) the Hoare annotation is: true [2019-10-13 21:07:05,970 INFO L439 ceAbstractionStarter]: At program point L24(line 24) the Hoare annotation is: false [2019-10-13 21:07:05,971 INFO L443 ceAbstractionStarter]: For program point L24-1(line 24) no Hoare annotation was computed. [2019-10-13 21:07:05,971 INFO L443 ceAbstractionStarter]: For program point L14-2(lines 14 22) no Hoare annotation was computed. [2019-10-13 21:07:05,971 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 22) the Hoare annotation is: false [2019-10-13 21:07:05,971 INFO L443 ceAbstractionStarter]: For program point L14-4(lines 14 22) no Hoare annotation was computed. [2019-10-13 21:07:05,971 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-13 21:07:05,972 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-13 21:07:05,972 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-13 21:07:05,972 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-13 21:07:05,972 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-13 21:07:05,972 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-13 21:07:05,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:07:05 BoogieIcfgContainer [2019-10-13 21:07:05,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 21:07:05,996 INFO L168 Benchmark]: Toolchain (without parser) took 3583.40 ms. Allocated memory was 141.0 MB in the beginning and 251.1 MB in the end (delta: 110.1 MB). Free memory was 101.4 MB in the beginning and 218.6 MB in the end (delta: -117.2 MB). Peak memory consumption was 114.2 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:05,996 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-13 21:07:05,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.54 ms. Allocated memory is still 141.0 MB. Free memory was 101.0 MB in the beginning and 91.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:06,000 INFO L168 Benchmark]: Boogie Preprocessor took 136.15 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 91.0 MB in the beginning and 178.3 MB in the end (delta: -87.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:06,001 INFO L168 Benchmark]: RCFGBuilder took 311.31 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 162.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:06,002 INFO L168 Benchmark]: TraceAbstraction took 2810.82 ms. Allocated memory was 200.8 MB in the beginning and 251.1 MB in the end (delta: 50.3 MB). Free memory was 161.5 MB in the beginning and 218.6 MB in the end (delta: -57.1 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. [2019-10-13 21:07:06,008 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory is still 119.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 310.54 ms. Allocated memory is still 141.0 MB. Free memory was 101.0 MB in the beginning and 91.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.15 ms. Allocated memory was 141.0 MB in the beginning and 200.8 MB in the end (delta: 59.8 MB). Free memory was 91.0 MB in the beginning and 178.3 MB in the end (delta: -87.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 311.31 ms. Allocated memory is still 200.8 MB. Free memory was 178.3 MB in the beginning and 162.5 MB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2810.82 ms. Allocated memory was 200.8 MB in the beginning and 251.1 MB in the end (delta: 50.3 MB). Free memory was 161.5 MB in the beginning and 218.6 MB in the end (delta: -57.1 MB). Peak memory consumption was 114.5 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: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((SIZE <= 4294967296 * (SIZE / 4294967296) + 1 && j <= 1) && 1 == k) && 0 < j / 4294967296 + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 10 SDslu, 43 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 31 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 11088 SizeOfPredicates, 13 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 136, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.9027777777777778, AVG_VARS_REMOVED_DURING_WEAKENING: 1.1666666666666667, AVG_WEAKENED_CONJUNCTS: 0.3333333333333333, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...