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_init2_ground-2.i
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 19:53:17,688 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 19:53:17,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 19:53:17,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 19:53:17,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 19:53:17,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 19:53:17,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 19:53:17,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 19:53:17,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 19:53:17,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
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[2019-10-13 19:53:17,716 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 19:53:17,717 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 19:53:17,718 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 19:53:17,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 19:53:17,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 19:53:17,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 19:53:17,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
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[2019-10-13 19:53:17,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
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[2019-10-13 19:53:17,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 19:53:17,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2019-10-13 19:53:17,741 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 19:53:17,764 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 19:53:17,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 19:53:17,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 19:53:17,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 19:53:17,772 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 19:53:17,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 19:53:17,772 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 19:53:17,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 19:53:17,773 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 19:53:17,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 19:53:17,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 19:53:17,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 19:53:17,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 19:53:17,774 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 19:53:17,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 19:53:17,774 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 19:53:17,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 19:53:17,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 19:53:17,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 19:53:17,777 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 19:53:17,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 19:53:17,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:53:17,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 19:53:17,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 19:53:17,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 19:53:17,778 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 19:53:17,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 19:53:17,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 19:53:17,779 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 19:53:18,101 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 19:53:18,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 19:53:18,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 19:53:18,118 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 19:53:18,119 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 19:53:18,119 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_init2_ground-2.i
[2019-10-13 19:53:18,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5af07e55/7f7785c7a72541338b00d105ba0e15c2/FLAG114ad89bd
[2019-10-13 19:53:18,653 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 19:53:18,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_init2_ground-2.i
[2019-10-13 19:53:18,660 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5af07e55/7f7785c7a72541338b00d105ba0e15c2/FLAG114ad89bd
[2019-10-13 19:53:19,015 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5af07e55/7f7785c7a72541338b00d105ba0e15c2
[2019-10-13 19:53:19,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 19:53:19,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 19:53:19,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 19:53:19,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 19:53:19,030 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 19:53:19,031 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,034 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61791d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19, skipping insertion in model container
[2019-10-13 19:53:19,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,042 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 19:53:19,058 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 19:53:19,219 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:53:19,223 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 19:53:19,250 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:53:19,273 INFO L192 MainTranslator]: Completed translation
[2019-10-13 19:53:19,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19 WrapperNode
[2019-10-13 19:53:19,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 19:53:19,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 19:53:19,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 19:53:19,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 19:53:19,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (1/1) ...
[2019-10-13 19:53:19,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 19:53:19,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 19:53:19,391 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 19:53:19,391 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 19:53:19,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (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 19:53:19,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 19:53:19,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 19:53:19,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-13 19:53:19,455 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 19:53:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 19:53:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-13 19:53:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 19:53:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 19:53:19,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 19:53:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 19:53:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 19:53:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 19:53:19,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 19:53:19,693 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 19:53:19,694 INFO L284 CfgBuilder]: Removed 3 assume(true) statements.
[2019-10-13 19:53:19,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:19 BoogieIcfgContainer
[2019-10-13 19:53:19,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 19:53:19,707 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 19:53:19,708 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 19:53:19,711 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 19:53:19,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:19" (1/3) ...
[2019-10-13 19:53:19,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6807d435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:19, skipping insertion in model container
[2019-10-13 19:53:19,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:19" (2/3) ...
[2019-10-13 19:53:19,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6807d435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:19, skipping insertion in model container
[2019-10-13 19:53:19,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:19" (3/3) ...
[2019-10-13 19:53:19,722 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_init2_ground-2.i
[2019-10-13 19:53:19,744 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 19:53:19,760 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 19:53:19,771 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 19:53:19,800 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 19:53:19,800 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 19:53:19,800 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 19:53:19,800 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 19:53:19,800 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 19:53:19,801 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 19:53:19,801 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 19:53:19,801 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 19:53:19,815 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states.
[2019-10-13 19:53:19,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2019-10-13 19:53:19,821 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:19,822 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:19,824 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:19,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:19,830 INFO L82 PathProgramCache]: Analyzing trace with hash 2104113866, now seen corresponding path program 1 times
[2019-10-13 19:53:19,837 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:19,837 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029368128]
[2019-10-13 19:53:19,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:19,838 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:19,838 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:19,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:19,959 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 19:53:19,960 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029368128]
[2019-10-13 19:53:19,961 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:53:19,961 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-10-13 19:53:19,961 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392103880]
[2019-10-13 19:53:19,966 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 19:53:19,968 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:19,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 19:53:19,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 19:53:19,985 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states.
[2019-10-13 19:53:20,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:20,009 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions.
[2019-10-13 19:53:20,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 19:53:20,010 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15
[2019-10-13 19:53:20,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:20,018 INFO L225 Difference]: With dead ends: 43
[2019-10-13 19:53:20,019 INFO L226 Difference]: Without dead ends: 20
[2019-10-13 19:53:20,022 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 19:53:20,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states.
[2019-10-13 19:53:20,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20.
[2019-10-13 19:53:20,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2019-10-13 19:53:20,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2019-10-13 19:53:20,060 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 15
[2019-10-13 19:53:20,060 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:20,060 INFO L462 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2019-10-13 19:53:20,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 19:53:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2019-10-13 19:53:20,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2019-10-13 19:53:20,062 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:20,062 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:20,063 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:20,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:20,063 INFO L82 PathProgramCache]: Analyzing trace with hash 743997126, now seen corresponding path program 1 times
[2019-10-13 19:53:20,063 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:20,064 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390751206]
[2019-10-13 19:53:20,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:20,064 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:20,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:20,131 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 19:53:20,131 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390751206]
[2019-10-13 19:53:20,132 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:53:20,132 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 19:53:20,132 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525836303]
[2019-10-13 19:53:20,134 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 19:53:20,134 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:20,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 19:53:20,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 19:53:20,135 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 3 states.
[2019-10-13 19:53:20,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:20,164 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions.
[2019-10-13 19:53:20,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 19:53:20,165 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15
[2019-10-13 19:53:20,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:20,167 INFO L225 Difference]: With dead ends: 35
[2019-10-13 19:53:20,167 INFO L226 Difference]: Without dead ends: 22
[2019-10-13 19:53:20,168 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 19:53:20,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states.
[2019-10-13 19:53:20,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22.
[2019-10-13 19:53:20,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states.
[2019-10-13 19:53:20,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions.
[2019-10-13 19:53:20,175 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 15
[2019-10-13 19:53:20,175 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:20,175 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions.
[2019-10-13 19:53:20,175 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 19:53:20,175 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions.
[2019-10-13 19:53:20,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2019-10-13 19:53:20,176 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:20,176 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 19:53:20,177 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:20,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:20,177 INFO L82 PathProgramCache]: Analyzing trace with hash 494025381, now seen corresponding path program 1 times
[2019-10-13 19:53:20,178 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:20,178 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048938308]
[2019-10-13 19:53:20,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:20,178 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:20,179 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:20,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:20,268 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 19:53:20,269 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048938308]
[2019-10-13 19:53:20,269 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492945464]
[2019-10-13 19:53:20,269 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 19:53:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:20,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-10-13 19:53:20,344 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 19:53:20,373 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 19:53:20,373 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 19:53:20,420 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 19:53:20,421 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1418320848]
[2019-10-13 19:53:20,428 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 18
[2019-10-13 19:53:20,460 INFO L148 AbstractInterpreter]: Using domain IntervalDomain
[2019-10-13 19:53:20,460 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-10-13 19:53:20,516 INFO L266 AbstractInterpreter]: Error location(s) were unreachable
[2019-10-13 19:53:20,518 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 17 variables.
[2019-10-13 19:53:20,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:20,522 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates
[2019-10-13 19:53:20,552 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes.
[2019-10-13 19:53:20,552 INFO L551 sIntCurrentIteration]: Unifying AI predicates
[2019-10-13 19:53:20,554 INFO L553 sIntCurrentIteration]: We unified 16 AI predicates to 16
[2019-10-13 19:53:20,554 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates
[2019-10-13 19:53:20,555 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences.
[2019-10-13 19:53:20,555 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7
[2019-10-13 19:53:20,555 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569121110]
[2019-10-13 19:53:20,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 19:53:20,556 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:20,557 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy
[2019-10-13 19:53:20,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 19:53:20,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 19:53:20,557 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 2 states.
[2019-10-13 19:53:20,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:20,560 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions.
[2019-10-13 19:53:20,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 19:53:20,560 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17
[2019-10-13 19:53:20,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:20,560 INFO L225 Difference]: With dead ends: 22
[2019-10-13 19:53:20,560 INFO L226 Difference]: Without dead ends: 0
[2019-10-13 19:53:20,561 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 19:53:20,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-10-13 19:53:20,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-10-13 19:53:20,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-10-13 19:53:20,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-10-13 19:53:20,562 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17
[2019-10-13 19:53:20,562 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:20,562 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-10-13 19:53:20,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 19:53:20,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-10-13 19:53:20,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-10-13 19:53:20,765 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:53:20,771 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-10-13 19:53:20,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:20,797 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true
[2019-10-13 19:53:20,798 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:20,798 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:20,798 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true
[2019-10-13 19:53:20,798 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-10-13 19:53:20,798 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:20,798 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 3 20) no Hoare annotation was computed.
[2019-10-13 19:53:20,798 INFO L439 ceAbstractionStarter]: At program point L17(line 17) the Hoare annotation is: false
[2019-10-13 19:53:20,798 INFO L443 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed.
[2019-10-13 19:53:20,798 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 3 20) no Hoare annotation was computed.
[2019-10-13 19:53:20,799 INFO L439 ceAbstractionStarter]: At program point L11-2(lines 11 14) the Hoare annotation is: false
[2019-10-13 19:53:20,799 INFO L443 ceAbstractionStarter]: For program point L11-3(lines 11 14) no Hoare annotation was computed.
[2019-10-13 19:53:20,799 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 3 20) the Hoare annotation is: true
[2019-10-13 19:53:20,799 INFO L443 ceAbstractionStarter]: For program point L16-2(lines 16 18) no Hoare annotation was computed.
[2019-10-13 19:53:20,799 INFO L439 ceAbstractionStarter]: At program point L16-3(lines 16 18) the Hoare annotation is: false
[2019-10-13 19:53:20,799 INFO L443 ceAbstractionStarter]: For program point L16-4(lines 16 18) no Hoare annotation was computed.
[2019-10-13 19:53:20,799 INFO L439 ceAbstractionStarter]: At program point L6-2(lines 6 9) the Hoare annotation is: false
[2019-10-13 19:53:20,799 INFO L443 ceAbstractionStarter]: For program point L6-3(lines 6 9) no Hoare annotation was computed.
[2019-10-13 19:53:20,799 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:20,800 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:20,800 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true
[2019-10-13 19:53:20,800 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:20,800 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:20,800 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:20,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:20 BoogieIcfgContainer
[2019-10-13 19:53:20,807 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-13 19:53:20,810 INFO L168 Benchmark]: Toolchain (without parser) took 1783.52 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 104.7 MB in the beginning and 111.4 MB in the end (delta: -6.7 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:20,811 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
[2019-10-13 19:53:20,812 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.73 ms. Allocated memory is still 139.5 MB. Free memory was 104.5 MB in the beginning and 94.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:20,813 INFO L168 Benchmark]: Boogie Preprocessor took 115.76 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 94.8 MB in the beginning and 180.7 MB in the end (delta: -86.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:20,814 INFO L168 Benchmark]: RCFGBuilder took 315.45 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 166.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:20,815 INFO L168 Benchmark]: TraceAbstraction took 1099.79 ms. Allocated memory is still 202.4 MB. Free memory was 166.1 MB in the beginning and 111.4 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:20,818 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.21 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 247.73 ms. Allocated memory is still 139.5 MB. Free memory was 104.5 MB in the beginning and 94.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 115.76 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 94.8 MB in the beginning and 180.7 MB in the end (delta: -86.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 315.45 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 166.8 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1099.79 ms. Allocated memory is still 202.4 MB. Free memory was 166.1 MB in the beginning and 111.4 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 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: 16]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 11]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 6]: Loop Invariant
Derived loop invariant: 0
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 25 locations, 1 error locations. Result: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 0 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 9 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 9 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 1380 SizeOfPredicates, 1 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: TIME[ms]: 94, ITERATIONS: 1, WAS_STRONG: 1, WEAKENING_RATIO: 0.953125, AVG_VARS_REMOVED_DURING_WEAKENING: 0.625, 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...