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_maxInArray_ground.i
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This is Ultimate 0.1.24-f4eb214f-m
[2019-10-13 19:53:23,219 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-10-13 19:53:23,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-10-13 19:53:23,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-10-13 19:53:23,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-10-13 19:53:23,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2019-10-13 19:53:23,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2019-10-13 19:53:23,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2019-10-13 19:53:23,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2019-10-13 19:53:23,242 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2019-10-13 19:53:23,243 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
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[2019-10-13 19:53:23,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
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[2019-10-13 19:53:23,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2019-10-13 19:53:23,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2019-10-13 19:53:23,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-10-13 19:53:23,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-10-13 19:53:23,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-10-13 19:53:23,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-10-13 19:53:23,256 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2019-10-13 19:53:23,257 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2019-10-13 19:53:23,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2019-10-13 19:53:23,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2019-10-13 19:53:23,262 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2019-10-13 19:53:23,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2019-10-13 19:53:23,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2019-10-13 19:53:23,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
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[2019-10-13 19:53:23,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2019-10-13 19:53:23,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2019-10-13 19:53:23,272 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 19:53:23,287 INFO L113 SettingsManager]: Loading preferences was successful
[2019-10-13 19:53:23,287 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-10-13 19:53:23,288 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-10-13 19:53:23,289 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-10-13 19:53:23,289 INFO L138 SettingsManager]: * Use SBE=true
[2019-10-13 19:53:23,289 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-10-13 19:53:23,289 INFO L138 SettingsManager]: * sizeof long=4
[2019-10-13 19:53:23,290 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-10-13 19:53:23,290 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-10-13 19:53:23,290 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-10-13 19:53:23,290 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-10-13 19:53:23,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-10-13 19:53:23,291 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-10-13 19:53:23,291 INFO L138 SettingsManager]: * sizeof long double=12
[2019-10-13 19:53:23,291 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-10-13 19:53:23,291 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-10-13 19:53:23,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-10-13 19:53:23,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-10-13 19:53:23,292 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-10-13 19:53:23,292 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-10-13 19:53:23,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-10-13 19:53:23,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-10-13 19:53:23,293 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-10-13 19:53:23,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-10-13 19:53:23,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-10-13 19:53:23,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-10-13 19:53:23,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-10-13 19:53:23,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-10-13 19:53:23,294 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 19:53:23,619 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-10-13 19:53:23,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-10-13 19:53:23,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-10-13 19:53:23,643 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-10-13 19:53:23,643 INFO L275 PluginConnector]: CDTParser initialized
[2019-10-13 19:53:23,644 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_maxInArray_ground.i
[2019-10-13 19:53:23,722 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf409c3cf/18a3dc01d4524d2fbcc7e56f2a5abedf/FLAGa834e99c5
[2019-10-13 19:53:24,184 INFO L306 CDTParser]: Found 1 translation units.
[2019-10-13 19:53:24,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_maxInArray_ground.i
[2019-10-13 19:53:24,191 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf409c3cf/18a3dc01d4524d2fbcc7e56f2a5abedf/FLAGa834e99c5
[2019-10-13 19:53:24,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf409c3cf/18a3dc01d4524d2fbcc7e56f2a5abedf
[2019-10-13 19:53:24,567 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-10-13 19:53:24,568 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-10-13 19:53:24,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-10-13 19:53:24,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-10-13 19:53:24,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-10-13 19:53:24,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3c52bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24, skipping insertion in model container
[2019-10-13 19:53:24,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,585 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-10-13 19:53:24,603 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-10-13 19:53:24,793 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:53:24,797 INFO L188 MainTranslator]: Completed pre-run
[2019-10-13 19:53:24,822 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-10-13 19:53:24,846 INFO L192 MainTranslator]: Completed translation
[2019-10-13 19:53:24,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24 WrapperNode
[2019-10-13 19:53:24,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-10-13 19:53:24,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-10-13 19:53:24,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-10-13 19:53:24,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-10-13 19:53:24,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,966 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (1/1) ...
[2019-10-13 19:53:24,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-10-13 19:53:24,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-10-13 19:53:24,969 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-10-13 19:53:24,969 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-10-13 19:53:24,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (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 19:53:25,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-10-13 19:53:25,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-10-13 19:53:25,032 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2019-10-13 19:53:25,032 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-10-13 19:53:25,032 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-10-13 19:53:25,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-10-13 19:53:25,033 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-10-13 19:53:25,033 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-10-13 19:53:25,033 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-10-13 19:53:25,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2019-10-13 19:53:25,033 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2019-10-13 19:53:25,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-10-13 19:53:25,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-10-13 19:53:25,034 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-10-13 19:53:25,318 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-10-13 19:53:25,318 INFO L284 CfgBuilder]: Removed 3 assume(true) statements.
[2019-10-13 19:53:25,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:25 BoogieIcfgContainer
[2019-10-13 19:53:25,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-10-13 19:53:25,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-10-13 19:53:25,321 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-10-13 19:53:25,324 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-10-13 19:53:25,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:53:24" (1/3) ...
[2019-10-13 19:53:25,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad45172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:25, skipping insertion in model container
[2019-10-13 19:53:25,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:53:24" (2/3) ...
[2019-10-13 19:53:25,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad45172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:53:25, skipping insertion in model container
[2019-10-13 19:53:25,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:53:25" (3/3) ...
[2019-10-13 19:53:25,328 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_maxInArray_ground.i
[2019-10-13 19:53:25,339 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-10-13 19:53:25,346 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-10-13 19:53:25,357 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-10-13 19:53:25,379 INFO L373 AbstractCegarLoop]: Interprodecural is true
[2019-10-13 19:53:25,379 INFO L374 AbstractCegarLoop]: Hoare is true
[2019-10-13 19:53:25,379 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-10-13 19:53:25,380 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-10-13 19:53:25,380 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-10-13 19:53:25,380 INFO L378 AbstractCegarLoop]: Difference is false
[2019-10-13 19:53:25,380 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-10-13 19:53:25,380 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-10-13 19:53:25,399 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states.
[2019-10-13 19:53:25,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2019-10-13 19:53:25,407 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:25,408 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:25,409 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:25,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:25,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1241254978, now seen corresponding path program 1 times
[2019-10-13 19:53:25,422 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:25,422 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020100044]
[2019-10-13 19:53:25,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:25,423 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:25,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:25,549 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 19:53:25,550 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020100044]
[2019-10-13 19:53:25,550 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:53:25,551 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2019-10-13 19:53:25,551 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185538563]
[2019-10-13 19:53:25,555 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 19:53:25,556 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:25,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 19:53:25,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 19:53:25,570 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 2 states.
[2019-10-13 19:53:25,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:25,591 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions.
[2019-10-13 19:53:25,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 19:53:25,592 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 15
[2019-10-13 19:53:25,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:25,598 INFO L225 Difference]: With dead ends: 48
[2019-10-13 19:53:25,599 INFO L226 Difference]: Without dead ends: 23
[2019-10-13 19:53:25,602 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 19:53:25,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states.
[2019-10-13 19:53:25,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23.
[2019-10-13 19:53:25,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states.
[2019-10-13 19:53:25,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions.
[2019-10-13 19:53:25,642 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 15
[2019-10-13 19:53:25,643 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:25,643 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions.
[2019-10-13 19:53:25,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 19:53:25,643 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions.
[2019-10-13 19:53:25,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2019-10-13 19:53:25,644 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:25,645 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:25,645 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:25,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:25,646 INFO L82 PathProgramCache]: Analyzing trace with hash -159068691, now seen corresponding path program 1 times
[2019-10-13 19:53:25,646 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:25,647 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746027589]
[2019-10-13 19:53:25,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:25,647 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:25,647 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:25,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:25,704 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 19:53:25,704 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746027589]
[2019-10-13 19:53:25,705 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:53:25,705 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 19:53:25,705 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599690520]
[2019-10-13 19:53:25,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 19:53:25,707 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:25,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 19:53:25,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 19:53:25,708 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 3 states.
[2019-10-13 19:53:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:25,754 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions.
[2019-10-13 19:53:25,754 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 19:53:25,755 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15
[2019-10-13 19:53:25,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:25,756 INFO L225 Difference]: With dead ends: 40
[2019-10-13 19:53:25,757 INFO L226 Difference]: Without dead ends: 25
[2019-10-13 19:53:25,758 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 19:53:25,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states.
[2019-10-13 19:53:25,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24.
[2019-10-13 19:53:25,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states.
[2019-10-13 19:53:25,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions.
[2019-10-13 19:53:25,768 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15
[2019-10-13 19:53:25,769 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:25,769 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions.
[2019-10-13 19:53:25,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 19:53:25,769 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions.
[2019-10-13 19:53:25,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2019-10-13 19:53:25,770 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:25,771 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 19:53:25,771 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:25,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:25,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1675123339, now seen corresponding path program 1 times
[2019-10-13 19:53:25,772 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:25,773 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396880587]
[2019-10-13 19:53:25,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:25,774 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:25,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:25,850 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 19:53:25,851 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396880587]
[2019-10-13 19:53:25,851 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-10-13 19:53:25,851 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-10-13 19:53:25,852 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718673888]
[2019-10-13 19:53:25,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-10-13 19:53:25,858 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:25,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-10-13 19:53:25,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-10-13 19:53:25,859 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand 3 states.
[2019-10-13 19:53:25,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:25,908 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions.
[2019-10-13 19:53:25,910 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-10-13 19:53:25,910 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17
[2019-10-13 19:53:25,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:25,911 INFO L225 Difference]: With dead ends: 38
[2019-10-13 19:53:25,911 INFO L226 Difference]: Without dead ends: 27
[2019-10-13 19:53:25,912 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 19:53:25,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states.
[2019-10-13 19:53:25,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25.
[2019-10-13 19:53:25,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states.
[2019-10-13 19:53:25,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions.
[2019-10-13 19:53:25,924 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 17
[2019-10-13 19:53:25,925 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:25,925 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions.
[2019-10-13 19:53:25,925 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-10-13 19:53:25,926 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions.
[2019-10-13 19:53:25,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2019-10-13 19:53:25,928 INFO L372 BasicCegarLoop]: Found error trace
[2019-10-13 19:53:25,928 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-10-13 19:53:25,929 INFO L410 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-10-13 19:53:25,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:25,930 INFO L82 PathProgramCache]: Analyzing trace with hash 99818017, now seen corresponding path program 1 times
[2019-10-13 19:53:25,930 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN
[2019-10-13 19:53:25,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031370916]
[2019-10-13 19:53:25,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:25,931 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-10-13 19:53:25,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-10-13 19:53:25,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:26,048 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 19:53:26,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031370916]
[2019-10-13 19:53:26,048 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251053953]
[2019-10-13 19:53:26,049 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 19:53:26,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-10-13 19:53:26,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core
[2019-10-13 19:53:26,110 INFO L279 TraceCheckSpWp]: Computing forward predicates...
[2019-10-13 19:53:26,146 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 19:53:26,146 INFO L321 TraceCheckSpWp]: Computing backward predicates...
[2019-10-13 19:53:26,181 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 19:53:26,181 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [739814466]
[2019-10-13 19:53:26,191 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 21
[2019-10-13 19:53:26,249 INFO L148 AbstractInterpreter]: Using domain IntervalDomain
[2019-10-13 19:53:26,250 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)
[2019-10-13 19:53:26,310 INFO L266 AbstractInterpreter]: Error location(s) were unreachable
[2019-10-13 19:53:26,312 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 19:53:26,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-10-13 19:53:26,316 INFO L536 sIntCurrentIteration]: Generating AbsInt predicates
[2019-10-13 19:53:26,349 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes.
[2019-10-13 19:53:26,350 INFO L551 sIntCurrentIteration]: Unifying AI predicates
[2019-10-13 19:53:26,352 INFO L553 sIntCurrentIteration]: We unified 19 AI predicates to 19
[2019-10-13 19:53:26,352 INFO L562 sIntCurrentIteration]: Finished generation of AbsInt predicates
[2019-10-13 19:53:26,353 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences.
[2019-10-13 19:53:26,353 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4, 4, 4] total 7
[2019-10-13 19:53:26,353 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358543466]
[2019-10-13 19:53:26,354 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states
[2019-10-13 19:53:26,355 INFO L137 tionRefinementEngine]: Using predicate unifier AbsIntPredicateUnifier provided by strategy TAIPAN
[2019-10-13 19:53:26,355 INFO L124 tionRefinementEngine]: Using hoare triple checker CachingHoareTripleCheckerMap provided by strategy
[2019-10-13 19:53:26,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2019-10-13 19:53:26,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2019-10-13 19:53:26,356 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 2 states.
[2019-10-13 19:53:26,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-10-13 19:53:26,358 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions.
[2019-10-13 19:53:26,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2019-10-13 19:53:26,359 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20
[2019-10-13 19:53:26,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-10-13 19:53:26,359 INFO L225 Difference]: With dead ends: 25
[2019-10-13 19:53:26,359 INFO L226 Difference]: Without dead ends: 0
[2019-10-13 19:53:26,360 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 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 19:53:26,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states.
[2019-10-13 19:53:26,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0.
[2019-10-13 19:53:26,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states.
[2019-10-13 19:53:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions.
[2019-10-13 19:53:26,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20
[2019-10-13 19:53:26,362 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-10-13 19:53:26,362 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions.
[2019-10-13 19:53:26,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states.
[2019-10-13 19:53:26,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions.
[2019-10-13 19:53:26,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run.
[2019-10-13 19:53:26,567 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2019-10-13 19:53:26,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.
[2019-10-13 19:53:26,602 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:26,602 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true
[2019-10-13 19:53:26,602 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:26,602 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:26,603 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true
[2019-10-13 19:53:26,603 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true
[2019-10-13 19:53:26,603 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed.
[2019-10-13 19:53:26,603 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 5 25) no Hoare annotation was computed.
[2019-10-13 19:53:26,603 INFO L443 ceAbstractionStarter]: For program point L21-2(lines 21 23) no Hoare annotation was computed.
[2019-10-13 19:53:26,604 INFO L439 ceAbstractionStarter]: At program point L21-3(lines 21 23) the Hoare annotation is: false
[2019-10-13 19:53:26,604 INFO L443 ceAbstractionStarter]: For program point L21-4(lines 21 23) no Hoare annotation was computed.
[2019-10-13 19:53:26,604 INFO L443 ceAbstractionStarter]: For program point L15(lines 15 17) no Hoare annotation was computed.
[2019-10-13 19:53:26,604 INFO L443 ceAbstractionStarter]: For program point L15-2(lines 15 17) no Hoare annotation was computed.
[2019-10-13 19:53:26,604 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 5 25) no Hoare annotation was computed.
[2019-10-13 19:53:26,604 INFO L443 ceAbstractionStarter]: For program point L9-2(lines 9 11) no Hoare annotation was computed.
[2019-10-13 19:53:26,605 INFO L439 ceAbstractionStarter]: At program point L9-3(lines 9 11) the Hoare annotation is: false
[2019-10-13 19:53:26,605 INFO L443 ceAbstractionStarter]: For program point L9-4(lines 9 11) no Hoare annotation was computed.
[2019-10-13 19:53:26,605 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 5 25) the Hoare annotation is: true
[2019-10-13 19:53:26,605 INFO L439 ceAbstractionStarter]: At program point L22(line 22) the Hoare annotation is: false
[2019-10-13 19:53:26,605 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed.
[2019-10-13 19:53:26,605 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 19) the Hoare annotation is: false
[2019-10-13 19:53:26,605 INFO L443 ceAbstractionStarter]: For program point L14-3(lines 14 19) no Hoare annotation was computed.
[2019-10-13 19:53:26,606 INFO L443 ceAbstractionStarter]: For program point L2-1(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:26,606 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:26,606 INFO L443 ceAbstractionStarter]: For program point L2-3(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:26,606 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 2) the Hoare annotation is: true
[2019-10-13 19:53:26,606 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:26,606 INFO L443 ceAbstractionStarter]: For program point L2(line 2) no Hoare annotation was computed.
[2019-10-13 19:53:26,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:53:26 BoogieIcfgContainer
[2019-10-13 19:53:26,615 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-10-13 19:53:26,617 INFO L168 Benchmark]: Toolchain (without parser) took 2048.37 ms. Allocated memory was 142.1 MB in the beginning and 198.7 MB in the end (delta: 56.6 MB). Free memory was 100.4 MB in the beginning and 98.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 58.6 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:26,618 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-10-13 19:53:26,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.77 ms. Allocated memory is still 142.1 MB. Free memory was 100.0 MB in the beginning and 89.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:26,620 INFO L168 Benchmark]: Boogie Preprocessor took 121.24 ms. Allocated memory was 142.1 MB in the beginning and 198.7 MB in the end (delta: 56.6 MB). Free memory was 89.8 MB in the beginning and 176.1 MB in the end (delta: -86.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:26,621 INFO L168 Benchmark]: RCFGBuilder took 351.31 ms. Allocated memory is still 198.7 MB. Free memory was 176.1 MB in the beginning and 161.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:26,622 INFO L168 Benchmark]: TraceAbstraction took 1293.83 ms. Allocated memory is still 198.7 MB. Free memory was 161.4 MB in the beginning and 98.4 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 7.1 GB.
[2019-10-13 19:53:26,626 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 118.5 MB in the beginning and 118.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 277.77 ms. Allocated memory is still 142.1 MB. Free memory was 100.0 MB in the beginning and 89.8 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 121.24 ms. Allocated memory was 142.1 MB in the beginning and 198.7 MB in the end (delta: 56.6 MB). Free memory was 89.8 MB in the beginning and 176.1 MB in the end (delta: -86.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 351.31 ms. Allocated memory is still 198.7 MB. Free memory was 176.1 MB in the beginning and 161.4 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 1293.83 ms. Allocated memory is still 198.7 MB. Free memory was 161.4 MB in the beginning and 98.4 MB in the end (delta: 62.9 MB). Peak memory consumption was 62.9 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- PositiveResult [Line: 2]: call of __VERIFIER_error() unreachable
For all program executions holds that call of __VERIFIER_error() unreachable at this location
- AllSpecificationsHoldResult: All specifications hold
1 specifications checked. All of them hold
- InvariantResult [Line: 9]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 14]: Loop Invariant
Derived loop invariant: 0
- InvariantResult [Line: 21]: Loop Invariant
Derived loop invariant: 0
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 4 procedures, 28 locations, 1 error locations. Result: SAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 83 SDtfs, 4 SDslu, 43 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 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, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 2133 SizeOfPredicates, 1 NumberOfNonLiveVariables, 69 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: 0.9473684210526315, AVG_VARS_REMOVED_DURING_WEAKENING: 0.6842105263157895, AVG_WEAKENED_CONJUNCTS: 0.3157894736842105, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate proved your program to be correct!
Received shutdown request...