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-examples/standard_two_index_02.i
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 19:53:29,397 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 19:53:29,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 19:53:29,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 19:53:29,418 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 19:53:29,420 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 19:53:29,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 19:53:29,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 19:53:29,435 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 19:53:29,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 19:53:29,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 19:53:29,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 19:53:29,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 19:53:29,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 19:53:29,447 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 19:53:29,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 19:53:29,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 19:53:29,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 19:53:29,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 19:53:29,457 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 19:53:29,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 19:53:29,465 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 19:53:29,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 19:53:29,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 19:53:29,471 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 19:53:29,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 19:53:29,472 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 19:53:29,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 19:53:29,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
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[2019-10-13 19:53:29,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 19:53:29,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 19:53:29,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2019-10-13 19:53:29,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-13 19:53:29,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 19:53:29,485 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 19:53:29,517 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 19:53:29,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 19:53:29,519 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 19:53:29,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 19:53:29,520 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 19:53:29,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 19:53:29,523 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 19:53:29,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 19:53:29,523 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 19:53:29,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 19:53:29,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 19:53:29,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 19:53:29,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 19:53:29,524 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 19:53:29,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 19:53:29,525 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 19:53:29,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 19:53:29,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 19:53:29,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 19:53:29,526 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 19:53:29,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 19:53:29,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:53:29,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 19:53:29,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 19:53:29,528 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 19:53:29,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 19:53:29,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 19:53:29,529 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 19:53:29,529 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 19:53:29,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 19:53:29,840 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 19:53:29,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 19:53:29,845 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 19:53:29,845 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 19:53:29,846 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_two_index_02.i
[2019-10-13 19:53:29,919 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559bc8c07/b6dfcdfebef040efbbb06e3d953f6d7e/FLAG2e792b795
[2019-10-13 19:53:30,358 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 19:53:30,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_two_index_02.i
[2019-10-13 19:53:30,365 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559bc8c07/b6dfcdfebef040efbbb06e3d953f6d7e/FLAG2e792b795
[2019-10-13 19:53:30,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559bc8c07/b6dfcdfebef040efbbb06e3d953f6d7e
[2019-10-13 19:53:30,733 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 19:53:30,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 19:53:30,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 19:53:30,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 19:53:30,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 19:53:30,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:30,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb0478c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30, skipping insertion in model container
[2019-10-13 19:53:30,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:30,751 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 19:53:30,771 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 19:53:30,943 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:53:30,948 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 19:53:30,970 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:53:30,989 INFO L192 MainTranslator]: Completed translation
[2019-10-13 19:53:30,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30 WrapperNode
[2019-10-13 19:53:30,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 19:53:30,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 19:53:30,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 19:53:30,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 19:53:31,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:31,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:31,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:31,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:31,112 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:31,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:31,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (1/1) ...
[2019-10-13 19:53:31,125 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 19:53:31,126 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 19:53:31,126 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 19:53:31,126 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 19:53:31,127 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (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 19:53:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 19:53:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 19:53:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-13 19:53:31,191 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 19:53:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 19:53:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-13 19:53:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 19:53:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 19:53:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 19:53:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 19:53:31,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 19:53:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 19:53:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 19:53:31,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 19:53:31,437 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 19:53:31,438 INFO L284 CfgBuilder]: Removed 3 assume(true) statements.
[2019-10-13 19:53:31,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:31 BoogieIcfgContainer
[2019-10-13 19:53:31,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 19:53:31,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 19:53:31,442 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 19:53:31,446 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 19:53:31,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:30" (1/3) ...
[2019-10-13 19:53:31,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abde81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:31, skipping insertion in model container
[2019-10-13 19:53:31,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:30" (2/3) ...
[2019-10-13 19:53:31,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1abde81b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:31, skipping insertion in model container
[2019-10-13 19:53:31,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:31" (3/3) ...
[2019-10-13 19:53:31,451 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_two_index_02.i
[2019-10-13 19:53:31,465 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 19:53:31,473 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 19:53:31,486 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 19:53:31,519 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 19:53:31,519 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 19:53:31,519 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 19:53:31,519 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 19:53:31,519 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 19:53:31,520 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 19:53:31,520 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 19:53:31,520 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 19:53:31,542 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2019-10-13 19:53:31,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2019-10-13 19:53:31,549 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:31,550 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:31,553 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:31,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:31,561 INFO L82 PathProgramCache]: Analyzing trace with hash -2029643862, now seen corresponding path program 1 times
[2019-10-13 19:53:31,570 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:31,571 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243786491]
[2019-10-13 19:53:31,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:31,571 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:31,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:31,699 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 19:53:31,700 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243786491]
[2019-10-13 19:53:31,700 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:53:31,701 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-10-13 19:53:31,701 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728627286]
[2019-10-13 19:53:31,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 19:53:31,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:31,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 19:53:31,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 19:53:31,725 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states.
[2019-10-13 19:53:31,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:31,751 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions.
[2019-10-13 19:53:31,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 19:53:31,753 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15
[2019-10-13 19:53:31,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:31,760 INFO L225 Difference]: With dead ends: 41
[2019-10-13 19:53:31,761 INFO L226 Difference]: Without dead ends: 19
[2019-10-13 19:53:31,764 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 19:53:31,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2019-10-13 19:53:31,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2019-10-13 19:53:31,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states.
[2019-10-13 19:53:31,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2019-10-13 19:53:31,798 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15
[2019-10-13 19:53:31,799 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:31,799 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2019-10-13 19:53:31,799 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 19:53:31,799 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2019-10-13 19:53:31,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2019-10-13 19:53:31,800 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:31,800 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:31,801 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:31,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:31,801 INFO L82 PathProgramCache]: Analyzing trace with hash 905206694, now seen corresponding path program 1 times
[2019-10-13 19:53:31,802 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:31,802 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588820770]
[2019-10-13 19:53:31,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:31,802 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:31,803 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:31,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:31,867 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 19:53:31,867 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588820770]
[2019-10-13 19:53:31,868 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:53:31,868 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 19:53:31,868 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505896862]
[2019-10-13 19:53:31,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 19:53:31,870 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:31,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 19:53:31,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 19:53:31,872 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states.
[2019-10-13 19:53:31,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:31,913 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions.
[2019-10-13 19:53:31,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 19:53:31,914 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15
[2019-10-13 19:53:31,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:31,915 INFO L225 Difference]: With dead ends: 32
[2019-10-13 19:53:31,915 INFO L226 Difference]: Without dead ends: 20
[2019-10-13 19:53:31,916 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
[2019-10-13 19:53:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2019-10-13 19:53:31,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2019-10-13 19:53:31,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2019-10-13 19:53:31,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2019-10-13 19:53:31,923 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15
[2019-10-13 19:53:31,923 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:31,923 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2019-10-13 19:53:31,923 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 19:53:31,924 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2019-10-13 19:53:31,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2019-10-13 19:53:31,925 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:31,925 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:31,925 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:31,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:31,926 INFO L82 PathProgramCache]: Analyzing trace with hash -764882998, now seen corresponding path program 1 times
[2019-10-13 19:53:31,926 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:31,926 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712926912]
[2019-10-13 19:53:31,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:31,927 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:31,927 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:32,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 19:53:32,001 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712926912]
[2019-10-13 19:53:32,001 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:53:32,002 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 19:53:32,002 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852750717]
[2019-10-13 19:53:32,003 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 19:53:32,003 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:32,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 19:53:32,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 19:53:32,006 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 3 states.
[2019-10-13 19:53:32,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:32,049 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions.
[2019-10-13 19:53:32,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 19:53:32,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16
[2019-10-13 19:53:32,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:32,053 INFO L225 Difference]: With dead ends: 34
[2019-10-13 19:53:32,053 INFO L226 Difference]: Without dead ends: 24
[2019-10-13 19:53:32,054 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
[2019-10-13 19:53:32,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states.
[2019-10-13 19:53:32,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21.
[2019-10-13 19:53:32,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2019-10-13 19:53:32,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions.
[2019-10-13 19:53:32,067 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 16
[2019-10-13 19:53:32,068 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:32,068 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions.
[2019-10-13 19:53:32,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 19:53:32,068 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions.
[2019-10-13 19:53:32,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2019-10-13 19:53:32,070 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:32,071 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:32,071 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:32,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:32,071 INFO L82 PathProgramCache]: Analyzing trace with hash -59429947, now seen corresponding path program 1 times
[2019-10-13 19:53:32,072 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:32,072 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066223450]
[2019-10-13 19:53:32,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:32,072 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:32,073 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 19:53:32,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066223450]
[2019-10-13 19:53:32,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067459111]
[2019-10-13 19:53:32,163 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 19:53:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:32,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-10-13 19:53:32,232 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 19:53:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 19:53:32,273 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 19:53:32,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2019-10-13 19:53:32,301 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1719073526]
[2019-10-13 19:53:32,307 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18
[2019-10-13 19:53:32,345 INFO L148 AbstractInterpreter]: Using domain IntervalDomain
[2019-10-13 19:53:32,345 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-10-13 19:53:32,426 INFO L266 AbstractInterpreter]: Error location(s) were unreachable
[2019-10-13 19:53:32,428 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 22 variables.
[2019-10-13 19:53:32,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:32,432 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates
[2019-10-13 19:53:32,468 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes.
[2019-10-13 19:53:32,469 INFO L551 sIntCurrentIteration]: Unifying AI predicates
[2019-10-13 19:53:32,470 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16
[2019-10-13 19:53:32,471 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates
[2019-10-13 19:53:32,471 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences.
[2019-10-13 19:53:32,471 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 8
[2019-10-13 19:53:32,472 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829530054]
[2019-10-13 19:53:32,473 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 19:53:32,473 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:32,474 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy
[2019-10-13 19:53:32,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 19:53:32,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 19:53:32,474 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 2 states.
[2019-10-13 19:53:32,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:32,477 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions.
[2019-10-13 19:53:32,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 19:53:32,477 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17
[2019-10-13 19:53:32,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:32,478 INFO L225 Difference]: With dead ends: 21
[2019-10-13 19:53:32,478 INFO L226 Difference]: Without dead ends: 0
[2019-10-13 19:53:32,479 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
[2019-10-13 19:53:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-10-13 19:53:32,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-10-13 19:53:32,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-10-13 19:53:32,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-10-13 19:53:32,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2019-10-13 19:53:32,480 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:32,480 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-10-13 19:53:32,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 19:53:32,481 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-10-13 19:53:32,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-10-13 19:53:32,685 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:53:32,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-10-13 19:53:32,714 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:32,715 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true
[2019-10-13 19:53:32,715 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:32,715 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:32,715 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true
[2019-10-13 19:53:32,716 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-10-13 19:53:32,716 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:32,716 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 4 31) no Hoare annotation was computed.
[2019-10-13 19:53:32,716 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 4 31) no Hoare annotation was computed.
[2019-10-13 19:53:32,716 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 4 31) the Hoare annotation is: true
[2019-10-13 19:53:32,717 INFO L439 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: false
[2019-10-13 19:53:32,717 INFO L443 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed.
[2019-10-13 19:53:32,717 INFO L439 ceAbstractionStarter]: At program point L24-2(lines 24 29) the Hoare annotation is: false
[2019-10-13 19:53:32,717 INFO L443 ceAbstractionStarter]: For program point L24-3(lines 24 29) no Hoare annotation was computed.
[2019-10-13 19:53:32,717 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 21) the Hoare annotation is: false
[2019-10-13 19:53:32,718 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 21) no Hoare annotation was computed.
[2019-10-13 19:53:32,718 INFO L439 ceAbstractionStarter]: At program point L10-2(lines 10 14) the Hoare annotation is: false
[2019-10-13 19:53:32,718 INFO L443 ceAbstractionStarter]: For program point L10-3(lines 10 14) no Hoare annotation was computed.
[2019-10-13 19:53:32,718 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:32,718 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:32,718 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true
[2019-10-13 19:53:32,719 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:32,719 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:32,719 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:32,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:32 BoogieIcfgContainer
[2019-10-13 19:53:32,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-13 19:53:32,730 INFO L168 Benchmark]: Toolchain (without parser) took 1994.05 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 103.6 MB in the beginning and 102.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:32,731 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-10-13 19:53:32,732 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.72 ms. Allocated memory is still 146.8 MB. Free memory was 103.4 MB in the beginning and 93.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:32,733 INFO L168 Benchmark]: Boogie Preprocessor took 135.71 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 93.5 MB in the beginning and 181.1 MB in the end (delta: -87.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:32,734 INFO L168 Benchmark]: RCFGBuilder took 313.91 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 166.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:32,735 INFO L168 Benchmark]: TraceAbstraction took 1285.56 ms. Allocated memory is still 203.4 MB. Free memory was 166.8 MB in the beginning and 102.1 MB in the end (delta: 64.7 MB). Peak memory consumption was 64.7 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:32,739 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.20 ms. Allocated memory is still 146.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 253.72 ms. Allocated memory is still 146.8 MB. Free memory was 103.4 MB in the beginning and 93.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 135.71 ms. Allocated memory was 146.8 MB in the beginning and 203.4 MB in the end (delta: 56.6 MB). Free memory was 93.5 MB in the beginning and 181.1 MB in the end (delta: -87.6 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 313.91 ms. Allocated memory is still 203.4 MB. Free memory was 181.1 MB in the beginning and 166.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1285.56 ms. Allocated memory is still 203.4 MB. Free memory was 166.8 MB in the beginning and 102.1 MB in the end (delta: 64.7 MB). Peak memory consumption was 64.7 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: 24]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 10]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 16]: Loop Invariant
Derived loop invariant: 0
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 24 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 1 SDslu, 24 SDs, 0 SdLazy, 19 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 9 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 1635 SizeOfPredicates, 1 NumberOfNonLiveVariables, 79 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 4/7 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 125, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.90625, AVG_VARS_REMOVED_DURING_WEAKENING: 1.0, 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...