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/array-industry-pattern/array_monotonic.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:52:31,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:52:31,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:52:31,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:52:31,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:52:31,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:52:31,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:52:31,410 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:52:31,412 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:52:31,413 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:52:31,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:52:31,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:52:31,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:52:31,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:52:31,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:52:31,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:52:31,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:52:31,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:52:31,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:52:31,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:52:31,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:52:31,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:52:31,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:52:31,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:52:31,430 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:52:31,433 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:52:31,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:52:31,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:52:31,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:52:31,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:52:31,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:52:31,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:52:31,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:52:31,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:52:31,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:52:31,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:52:31,440 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 [2019-10-14 23:52:31,460 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:52:31,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:52:31,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:52:31,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:52:31,462 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:52:31,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:52:31,463 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:52:31,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:52:31,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:52:31,463 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:52:31,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:52:31,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:52:31,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:52:31,465 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:52:31,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:52:31,466 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:52:31,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:52:31,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:52:31,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:52:31,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:52:31,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:52:31,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:52:31,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:52:31,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:52:31,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:52:31,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:52:31,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:52:31,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:52:31,469 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 [2019-10-14 23:52:31,752 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:52:31,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:52:31,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:52:31,778 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:52:31,778 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:52:31,779 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-industry-pattern/array_monotonic.i [2019-10-14 23:52:31,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48f22393/0fee86f0ccca40fa95210e5f6a93c91a/FLAGcb3d0d64b [2019-10-14 23:52:32,309 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:52:32,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-industry-pattern/array_monotonic.i [2019-10-14 23:52:32,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48f22393/0fee86f0ccca40fa95210e5f6a93c91a/FLAGcb3d0d64b [2019-10-14 23:52:32,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f48f22393/0fee86f0ccca40fa95210e5f6a93c91a [2019-10-14 23:52:32,698 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:52:32,700 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:52:32,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:32,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:52:32,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:52:32,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:32" (1/1) ... [2019-10-14 23:52:32,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@154386d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:32, skipping insertion in model container [2019-10-14 23:52:32,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:52:32" (1/1) ... [2019-10-14 23:52:32,717 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:52:32,734 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:52:32,945 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:32,955 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:52:32,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:52:32,999 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:52:33,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33 WrapperNode [2019-10-14 23:52:33,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:52:33,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:52:33,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:52:33,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:52:33,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,115 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,120 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (1/1) ... [2019-10-14 23:52:33,123 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:52:33,124 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:52:33,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:52:33,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:52:33,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (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 [2019-10-14 23:52:33,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:52:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:52:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:52:33,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:52:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:52:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:52:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:52:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:52:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:52:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:52:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:52:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:52:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:52:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:52:33,409 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:52:33,409 INFO L284 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-14 23:52:33,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:33 BoogieIcfgContainer [2019-10-14 23:52:33,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:52:33,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:52:33,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:52:33,416 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:52:33,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:52:32" (1/3) ... [2019-10-14 23:52:33,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a71c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:33, skipping insertion in model container [2019-10-14 23:52:33,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:52:33" (2/3) ... [2019-10-14 23:52:33,418 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35a71c9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:52:33, skipping insertion in model container [2019-10-14 23:52:33,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:52:33" (3/3) ... [2019-10-14 23:52:33,419 INFO L109 eAbstractionObserver]: Analyzing ICFG array_monotonic.i [2019-10-14 23:52:33,429 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:52:33,439 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:52:33,454 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:52:33,482 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:52:33,482 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:52:33,482 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:52:33,482 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:52:33,483 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:52:33,483 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:52:33,483 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:52:33,483 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:52:33,505 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-14 23:52:33,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-14 23:52:33,513 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:33,514 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:33,516 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:33,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:33,522 INFO L82 PathProgramCache]: Analyzing trace with hash 547567586, now seen corresponding path program 1 times [2019-10-14 23:52:33,532 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:33,533 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336857746] [2019-10-14 23:52:33,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:33,533 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:33,533 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:33,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:33,672 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336857746] [2019-10-14 23:52:33,673 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:33,673 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-14 23:52:33,673 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787402180] [2019-10-14 23:52:33,677 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:33,679 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:33,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:33,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:33,695 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-10-14 23:52:33,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:33,720 INFO L93 Difference]: Finished difference Result 43 states and 53 transitions. [2019-10-14 23:52:33,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:33,722 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2019-10-14 23:52:33,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:33,732 INFO L225 Difference]: With dead ends: 43 [2019-10-14 23:52:33,732 INFO L226 Difference]: Without dead ends: 21 [2019-10-14 23:52:33,736 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 [2019-10-14 23:52:33,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-14 23:52:33,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-14 23:52:33,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-14 23:52:33,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2019-10-14 23:52:33,770 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 14 [2019-10-14 23:52:33,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:33,771 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2019-10-14 23:52:33,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:33,771 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2019-10-14 23:52:33,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-14 23:52:33,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:33,772 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:33,773 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:33,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:33,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1443476915, now seen corresponding path program 1 times [2019-10-14 23:52:33,774 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:33,774 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404236017] [2019-10-14 23:52:33,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:33,775 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:33,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:33,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:33,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:33,835 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404236017] [2019-10-14 23:52:33,836 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:52:33,836 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-14 23:52:33,836 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58946607] [2019-10-14 23:52:33,839 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-14 23:52:33,839 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:33,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-14 23:52:33,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:33,840 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 3 states. [2019-10-14 23:52:33,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:33,930 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2019-10-14 23:52:33,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-14 23:52:33,932 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2019-10-14 23:52:33,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:33,936 INFO L225 Difference]: With dead ends: 41 [2019-10-14 23:52:33,937 INFO L226 Difference]: Without dead ends: 29 [2019-10-14 23:52:33,939 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-14 23:52:33,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-14 23:52:33,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 22. [2019-10-14 23:52:33,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-14 23:52:33,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-10-14 23:52:33,956 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 14 [2019-10-14 23:52:33,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:33,957 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-10-14 23:52:33,957 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-14 23:52:33,957 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-10-14 23:52:33,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-14 23:52:33,958 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:52:33,959 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:52:33,960 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:52:33,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:33,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1901506806, now seen corresponding path program 1 times [2019-10-14 23:52:33,961 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-14 23:52:33,962 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498841735] [2019-10-14 23:52:33,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:33,963 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:52:33,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:52:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:34,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:34,102 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498841735] [2019-10-14 23:52:34,103 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554493591] [2019-10-14 23:52:34,103 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 [2019-10-14 23:52:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:52:34,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-14 23:52:34,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:52:34,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:34,195 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-14 23:52:34,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:52:34,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1790835213] [2019-10-14 23:52:34,255 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18 [2019-10-14 23:52:34,287 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-14 23:52:34,287 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-14 23:52:34,352 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-14 23:52:34,353 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 21 variables. [2019-10-14 23:52:34,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:52:34,357 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-14 23:52:34,406 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-14 23:52:34,406 INFO L551 sIntCurrentIteration]: Unifying AI predicates [2019-10-14 23:52:34,408 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16 [2019-10-14 23:52:34,408 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-14 23:52:34,409 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2019-10-14 23:52:34,409 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7 [2019-10-14 23:52:34,410 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523720007] [2019-10-14 23:52:34,410 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-14 23:52:34,411 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN [2019-10-14 23:52:34,411 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy [2019-10-14 23:52:34,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-14 23:52:34,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:34,412 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 2 states. [2019-10-14 23:52:34,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:52:34,414 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2019-10-14 23:52:34,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-14 23:52:34,414 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-10-14 23:52:34,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:52:34,415 INFO L225 Difference]: With dead ends: 22 [2019-10-14 23:52:34,415 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:52:34,415 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-14 23:52:34,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:52:34,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:52:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:52:34,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:52:34,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-14 23:52:34,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:52:34,416 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:52:34,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-14 23:52:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:52:34,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:52:34,620 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:52:34,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:52:34,646 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:34,646 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:34,647 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:34,647 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:52:34,647 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:52:34,647 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:52:34,647 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:52:34,647 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 20) no Hoare annotation was computed. [2019-10-14 23:52:34,648 INFO L443 ceAbstractionStarter]: For program point L17(lines 17 18) no Hoare annotation was computed. [2019-10-14 23:52:34,648 INFO L443 ceAbstractionStarter]: For program point L15-2(lines 15 19) no Hoare annotation was computed. [2019-10-14 23:52:34,648 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 20) no Hoare annotation was computed. [2019-10-14 23:52:34,648 INFO L439 ceAbstractionStarter]: At program point L15-3(lines 15 19) the Hoare annotation is: false [2019-10-14 23:52:34,648 INFO L443 ceAbstractionStarter]: For program point L15-4(lines 15 19) no Hoare annotation was computed. [2019-10-14 23:52:34,648 INFO L443 ceAbstractionStarter]: For program point L9-2(lines 9 14) no Hoare annotation was computed. [2019-10-14 23:52:34,649 INFO L439 ceAbstractionStarter]: At program point L9-3(lines 9 14) the Hoare annotation is: false [2019-10-14 23:52:34,649 INFO L443 ceAbstractionStarter]: For program point L9-4(lines 9 14) no Hoare annotation was computed. [2019-10-14 23:52:34,649 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 20) the Hoare annotation is: true [2019-10-14 23:52:34,649 INFO L439 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: false [2019-10-14 23:52:34,649 INFO L443 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-10-14 23:52:34,650 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2019-10-14 23:52:34,650 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed. [2019-10-14 23:52:34,650 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed. [2019-10-14 23:52:34,650 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true [2019-10-14 23:52:34,650 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed. [2019-10-14 23:52:34,651 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed. [2019-10-14 23:52:34,651 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed. [2019-10-14 23:52:34,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:52:34 BoogieIcfgContainer [2019-10-14 23:52:34,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:52:34,663 INFO L168 Benchmark]: Toolchain (without parser) took 1962.43 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 106.7 MB in the end (delta: -4.2 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:34,664 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-10-14 23:52:34,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.26 ms. Allocated memory is still 144.2 MB. Free memory was 102.2 MB in the beginning and 92.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:34,666 INFO L168 Benchmark]: Boogie Preprocessor took 122.94 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 179.5 MB in the end (delta: -87.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:34,667 INFO L168 Benchmark]: RCFGBuilder took 287.08 ms. Allocated memory is still 201.3 MB. Free memory was 178.9 MB in the beginning and 164.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:34,668 INFO L168 Benchmark]: TraceAbstraction took 1247.73 ms. Allocated memory is still 201.3 MB. Free memory was 164.7 MB in the beginning and 106.7 MB in the end (delta: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:52:34,672 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 299.26 ms. Allocated memory is still 144.2 MB. Free memory was 102.2 MB in the beginning and 92.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.94 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 92.4 MB in the beginning and 179.5 MB in the end (delta: -87.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 287.08 ms. Allocated memory is still 201.3 MB. Free memory was 178.9 MB in the beginning and 164.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1247.73 ms. Allocated memory is still 201.3 MB. Free memory was 164.7 MB in the beginning and 106.7 MB in the end (delta: 58.0 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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: 9]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 7 SDslu, 15 SDs, 0 SdLazy, 13 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 10 NumberOfFragments, 8 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 1516 SizeOfPredicates, 1 NumberOfNonLiveVariables, 73 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 103, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.921875, AVG_VARS_REMOVED_DURING_WEAKENING: 0.8125, AVG_WEAKENED_CONJUNCTS: 0.375, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...