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/loop-lit/gsv2008.i
--------------------------------------------------------------------------------
This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 21:06:37,506 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 21:06:37,509 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 21:06:37,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 21:06:37,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 21:06:37,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 21:06:37,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 21:06:37,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 21:06:37,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 21:06:37,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 21:06:37,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2019-10-13 21:06:37,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2019-10-13 21:06:37,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2019-10-13 21:06:37,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2019-10-13 21:06:37,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 21:06:37,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 21:06:37,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 21:06:37,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 21:06:37,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 21:06:37,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 21:06:37,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 21:06:37,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 21:06:37,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 21:06:37,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 21:06:37,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 21:06:37,556 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 21:06:37,557 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 21:06:37,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2019-10-13 21:06:37,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2019-10-13 21:06:37,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2019-10-13 21:06:37,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2019-10-13 21:06:37,561 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2019-10-13 21:06:37,562 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2019-10-13 21:06:37,564 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2019-10-13 21:06:37,565 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2019-10-13 21:06:37,565 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2019-10-13 21:06:37,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2019-10-13 21:06:37,568 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2019-10-13 21:06:37,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2019-10-13 21:06:37,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2019-10-13 21:06:37,570 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-10-13 21:06:37,571 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf
[2019-10-13 21:06:37,594 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 21:06:37,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 21:06:37,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 21:06:37,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 21:06:37,597 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 21:06:37,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 21:06:37,597 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 21:06:37,597 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 21:06:37,597 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 21:06:37,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 21:06:37,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 21:06:37,598 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 21:06:37,598 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 21:06:37,598 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 21:06:37,599 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 21:06:37,599 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 21:06:37,599 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 21:06:37,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 21:06:37,599 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 21:06:37,600 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 21:06:37,600 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 21:06:37,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 21:06:37,600 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 21:06:37,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 21:06:37,601 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 21:06:37,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 21:06:37,601 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 21:06:37,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 21:06:37,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES
[2019-10-13 21:06:37,872 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 21:06:37,887 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 21:06:37,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 21:06:37,892 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 21:06:37,892 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 21:06:37,893 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008.i
[2019-10-13 21:06:37,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b8b484c/f8dfe013fdc646e8ad1a8fb3ae4aab95/FLAGf11d490b5
[2019-10-13 21:06:38,425 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 21:06:38,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008.i
[2019-10-13 21:06:38,432 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b8b484c/f8dfe013fdc646e8ad1a8fb3ae4aab95/FLAGf11d490b5
[2019-10-13 21:06:38,843 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6b8b484c/f8dfe013fdc646e8ad1a8fb3ae4aab95
[2019-10-13 21:06:38,852 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 21:06:38,854 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 21:06:38,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 21:06:38,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 21:06:38,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 21:06:38,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:06:38" (1/1) ...
[2019-10-13 21:06:38,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f461a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:38, skipping insertion in model container
[2019-10-13 21:06:38,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 09:06:38" (1/1) ...
[2019-10-13 21:06:38,869 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 21:06:38,885 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 21:06:39,046 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 21:06:39,052 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 21:06:39,072 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 21:06:39,087 INFO L192 MainTranslator]: Completed translation
[2019-10-13 21:06:39,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39 WrapperNode
[2019-10-13 21:06:39,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 21:06:39,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 21:06:39,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 21:06:39,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 21:06:39,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (1/1) ...
[2019-10-13 21:06:39,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (1/1) ...
[2019-10-13 21:06:39,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (1/1) ...
[2019-10-13 21:06:39,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (1/1) ...
[2019-10-13 21:06:39,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (1/1) ...
[2019-10-13 21:06:39,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (1/1) ...
[2019-10-13 21:06:39,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (1/1) ...
[2019-10-13 21:06:39,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 21:06:39,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 21:06:39,187 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 21:06:39,187 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 21:06:39,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 21:06:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 21:06:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 21:06:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-13 21:06:39,234 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 21:06:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 21:06:39,234 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-10-13 21:06:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-13 21:06:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 21:06:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 21:06:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 21:06:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 21:06:39,404 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 21:06:39,404 INFO L284 CfgBuilder]: Removed 1 assume(true) statements.
[2019-10-13 21:06:39,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:06:39 BoogieIcfgContainer
[2019-10-13 21:06:39,406 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 21:06:39,407 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 21:06:39,407 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 21:06:39,410 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 21:06:39,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 09:06:38" (1/3) ...
[2019-10-13 21:06:39,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f67833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:06:39, skipping insertion in model container
[2019-10-13 21:06:39,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 09:06:39" (2/3) ...
[2019-10-13 21:06:39,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34f67833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 09:06:39, skipping insertion in model container
[2019-10-13 21:06:39,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 09:06:39" (3/3) ...
[2019-10-13 21:06:39,414 INFO L109 eAbstractionObserver]: Analyzing ICFG gsv2008.i
[2019-10-13 21:06:39,422 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 21:06:39,429 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 21:06:39,440 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 21:06:39,464 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 21:06:39,464 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 21:06:39,464 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 21:06:39,465 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 21:06:39,465 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 21:06:39,465 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 21:06:39,465 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 21:06:39,465 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 21:06:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states.
[2019-10-13 21:06:39,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-10-13 21:06:39,486 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 21:06:39,487 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 21:06:39,489 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 21:06:39,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 21:06:39,495 INFO L82 PathProgramCache]: Analyzing trace with hash 578729635, now seen corresponding path program 1 times
[2019-10-13 21:06:39,504 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 21:06:39,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72251943]
[2019-10-13 21:06:39,505 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:06:39,505 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:06:39,505 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 21:06:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 21:06:39,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 21:06:39,621 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72251943]
[2019-10-13 21:06:39,622 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 21:06:39,623 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-10-13 21:06:39,623 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014488654]
[2019-10-13 21:06:39,627 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 21:06:39,629 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 21:06:39,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 21:06:39,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 21:06:39,646 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states.
[2019-10-13 21:06:39,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 21:06:39,668 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions.
[2019-10-13 21:06:39,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 21:06:39,670 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11
[2019-10-13 21:06:39,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 21:06:39,678 INFO L225 Difference]: With dead ends: 31
[2019-10-13 21:06:39,678 INFO L226 Difference]: Without dead ends: 12
[2019-10-13 21:06:39,681 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 21:06:39,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states.
[2019-10-13 21:06:39,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12.
[2019-10-13 21:06:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states.
[2019-10-13 21:06:39,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions.
[2019-10-13 21:06:39,719 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11
[2019-10-13 21:06:39,719 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 21:06:39,719 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions.
[2019-10-13 21:06:39,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 21:06:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions.
[2019-10-13 21:06:39,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12
[2019-10-13 21:06:39,720 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 21:06:39,721 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 21:06:39,721 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 21:06:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 21:06:39,723 INFO L82 PathProgramCache]: Analyzing trace with hash 575035551, now seen corresponding path program 1 times
[2019-10-13 21:06:39,723 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 21:06:39,723 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279279155]
[2019-10-13 21:06:39,723 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:06:39,724 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:06:39,724 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 21:06:39,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 21:06:39,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 21:06:39,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279279155]
[2019-10-13 21:06:39,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 21:06:39,793 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 21:06:39,793 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333278975]
[2019-10-13 21:06:39,794 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 21:06:39,795 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 21:06:39,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 21:06:39,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 21:06:39,795 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 3 states.
[2019-10-13 21:06:39,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 21:06:39,834 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions.
[2019-10-13 21:06:39,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 21:06:39,835 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11
[2019-10-13 21:06:39,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 21:06:39,836 INFO L225 Difference]: With dead ends: 18
[2019-10-13 21:06:39,836 INFO L226 Difference]: Without dead ends: 13
[2019-10-13 21:06:39,837 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 21:06:39,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states.
[2019-10-13 21:06:39,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13.
[2019-10-13 21:06:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states.
[2019-10-13 21:06:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions.
[2019-10-13 21:06:39,841 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11
[2019-10-13 21:06:39,842 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 21:06:39,842 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions.
[2019-10-13 21:06:39,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 21:06:39,842 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions.
[2019-10-13 21:06:39,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13
[2019-10-13 21:06:39,843 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 21:06:39,843 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 21:06:39,843 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 21:06:39,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 21:06:39,845 INFO L82 PathProgramCache]: Analyzing trace with hash 681770644, now seen corresponding path program 1 times
[2019-10-13 21:06:39,845 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 21:06:39,846 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598226748]
[2019-10-13 21:06:39,846 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:06:39,846 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 21:06:39,846 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 21:06:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 21:06:39,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 21:06:39,983 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598226748]
[2019-10-13 21:06:39,984 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549152469]
[2019-10-13 21:06:39,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 21:06:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 21:06:40,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 10 conjunts are in the unsatisfiable core
[2019-10-13 21:06:40,031 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 21:06:40,108 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms
[2019-10-13 21:06:40,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 21:06:40,145 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 21:06:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-10-13 21:06:40,210 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences.
[2019-10-13 21:06:40,210 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [7] total 13
[2019-10-13 21:06:40,211 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496350364]
[2019-10-13 21:06:40,211 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states
[2019-10-13 21:06:40,212 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 21:06:40,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2019-10-13 21:06:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156
[2019-10-13 21:06:40,213 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 10 states.
[2019-10-13 21:06:40,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 21:06:40,288 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions.
[2019-10-13 21:06:40,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2019-10-13 21:06:40,289 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12
[2019-10-13 21:06:40,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 21:06:40,289 INFO L225 Difference]: With dead ends: 13
[2019-10-13 21:06:40,290 INFO L226 Difference]: Without dead ends: 0
[2019-10-13 21:06:40,290 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210
[2019-10-13 21:06:40,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-10-13 21:06:40,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-10-13 21:06:40,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-10-13 21:06:40,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-10-13 21:06:40,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12
[2019-10-13 21:06:40,292 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 21:06:40,292 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-10-13 21:06:40,292 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states.
[2019-10-13 21:06:40,292 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-10-13 21:06:40,292 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-10-13 21:06:40,495 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 21:06:40,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-10-13 21:06:40,559 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true
[2019-10-13 21:06:40,559 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 21:06:40,560 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 21:06:40,560 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true
[2019-10-13 21:06:40,560 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-10-13 21:06:40,560 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 21:06:40,560 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 10 21) the Hoare annotation is: true
[2019-10-13 21:06:40,560 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 21) no Hoare annotation was computed.
[2019-10-13 21:06:40,561 INFO L443 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed.
[2019-10-13 21:06:40,561 INFO L443 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed.
[2019-10-13 21:06:40,561 INFO L439 ceAbstractionStarter]: At program point L15-2(lines 15 18) the Hoare annotation is: (or (<= (+ main_~x~0 50) 0) (<= (+ main_~x~0 2) main_~y~0))
[2019-10-13 21:06:40,561 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 10 21) no Hoare annotation was computed.
[2019-10-13 21:06:40,561 INFO L439 ceAbstractionStarter]: At program point L15-3(lines 15 18) the Hoare annotation is: (and (<= (+ main_~x~0 2) main_~y~0) (<= 2 main_~y~0))
[2019-10-13 21:06:40,562 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true
[2019-10-13 21:06:40,562 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed.
[2019-10-13 21:06:40,562 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed.
[2019-10-13 21:06:40,562 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed.
[2019-10-13 21:06:40,562 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed.
[2019-10-13 21:06:40,562 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed.
[2019-10-13 21:06:40,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 09:06:40 BoogieIcfgContainer
[2019-10-13 21:06:40,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-13 21:06:40,580 INFO L168 Benchmark]: Toolchain (without parser) took 1724.69 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 102.3 MB in the beginning and 106.5 MB in the end (delta: -4.2 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:40,581 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-10-13 21:06:40,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.94 ms. Allocated memory is still 137.4 MB. Free memory was 102.1 MB in the beginning and 92.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:40,583 INFO L168 Benchmark]: Boogie Preprocessor took 97.58 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 92.5 MB in the beginning and 178.6 MB in the end (delta: -86.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:40,584 INFO L168 Benchmark]: RCFGBuilder took 219.02 ms. Allocated memory is still 199.8 MB. Free memory was 178.6 MB in the beginning and 166.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:40,585 INFO L168 Benchmark]: TraceAbstraction took 1169.94 ms. Allocated memory is still 199.8 MB. Free memory was 166.9 MB in the beginning and 106.5 MB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB.
[2019-10-13 21:06:40,589 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.22 ms. Allocated memory is still 137.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 233.94 ms. Allocated memory is still 137.4 MB. Free memory was 102.1 MB in the beginning and 92.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 97.58 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 92.5 MB in the beginning and 178.6 MB in the end (delta: -86.1 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 219.02 ms. Allocated memory is still 199.8 MB. Free memory was 178.6 MB in the beginning and 166.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1169.94 ms. Allocated memory is still 199.8 MB. Free memory was 166.9 MB in the beginning and 106.5 MB in the end (delta: 60.4 MB). Peak memory consumption was 60.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 15]: Loop Invariant
Derived loop invariant: x + 50 <= 0 || x + 2 <= y
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 37 SDtfs, 3 SDslu, 34 SDs, 0 SdLazy, 32 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 25 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1127 SizeOfPredicates, 5 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...