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 -i ../../../trunk/examples/svcomp/float-benchs/interpolation2.c.v+cfa-reducer.c
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This is Ultimate 0.1.24-112bae1
[2019-09-08 01:12:57,952 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-09-08 01:12:57,954 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-08 01:12:57,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-08 01:12:57,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2019-09-08 01:12:57,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
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[2019-09-08 01:12:57,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
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[2019-09-08 01:12:57,980 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2019-09-08 01:12:57,981 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2019-09-08 01:12:57,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-08 01:12:57,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2019-09-08 01:12:57,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
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[2019-09-08 01:12:58,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2019-09-08 01:12:58,006 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
[2019-09-08 01:12:58,022 INFO L113 SettingsManager]: Loading preferences was successful
[2019-09-08 01:12:58,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-08 01:12:58,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-08 01:12:58,025 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-09-08 01:12:58,025 INFO L138 SettingsManager]: * Use SBE=true
[2019-09-08 01:12:58,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-08 01:12:58,025 INFO L138 SettingsManager]: * sizeof long=4
[2019-09-08 01:12:58,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-09-08 01:12:58,026 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-09-08 01:12:58,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-09-08 01:12:58,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-09-08 01:12:58,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-08 01:12:58,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-09-08 01:12:58,027 INFO L138 SettingsManager]: * sizeof long double=12
[2019-09-08 01:12:58,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-09-08 01:12:58,028 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-09-08 01:12:58,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-09-08 01:12:58,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-08 01:12:58,028 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-09-08 01:12:58,028 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-09-08 01:12:58,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-09-08 01:12:58,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-08 01:12:58,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-08 01:12:58,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-09-08 01:12:58,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-08 01:12:58,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-09-08 01:12:58,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-08 01:12:58,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-08 01:12:58,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-08 01:12:58,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-08 01:12:58,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-08 01:12:58,102 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-08 01:12:58,104 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-09-08 01:12:58,106 INFO L275 PluginConnector]: CDTParser initialized
[2019-09-08 01:12:58,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/interpolation2.c.v+cfa-reducer.c
[2019-09-08 01:12:58,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173baf45c/226a1e796a91450387dca2a8a9680d88/FLAG66c7711b8
[2019-09-08 01:12:58,714 INFO L306 CDTParser]: Found 1 translation units.
[2019-09-08 01:12:58,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/interpolation2.c.v+cfa-reducer.c
[2019-09-08 01:12:58,723 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173baf45c/226a1e796a91450387dca2a8a9680d88/FLAG66c7711b8
[2019-09-08 01:12:58,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/173baf45c/226a1e796a91450387dca2a8a9680d88
[2019-09-08 01:12:59,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-08 01:12:59,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-08 01:12:59,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-08 01:12:59,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-08 01:12:59,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-08 01:12:59,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:12:58" (1/1) ...
[2019-09-08 01:12:59,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1beffccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59, skipping insertion in model container
[2019-09-08 01:12:59,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:12:58" (1/1) ...
[2019-09-08 01:12:59,023 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-09-08 01:12:59,039 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-09-08 01:12:59,223 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-09-08 01:12:59,228 INFO L188 MainTranslator]: Completed pre-run
[2019-09-08 01:12:59,360 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-09-08 01:12:59,379 INFO L192 MainTranslator]: Completed translation
[2019-09-08 01:12:59,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59 WrapperNode
[2019-09-08 01:12:59,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-08 01:12:59,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-08 01:12:59,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-08 01:12:59,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-09-08 01:12:59,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (1/1) ...
[2019-09-08 01:12:59,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (1/1) ...
[2019-09-08 01:12:59,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (1/1) ...
[2019-09-08 01:12:59,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (1/1) ...
[2019-09-08 01:12:59,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (1/1) ...
[2019-09-08 01:12:59,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (1/1) ...
[2019-09-08 01:12:59,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (1/1) ...
[2019-09-08 01:12:59,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-08 01:12:59,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-08 01:12:59,423 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-09-08 01:12:59,423 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-09-08 01:12:59,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (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
[2019-09-08 01:12:59,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-08 01:12:59,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-08 01:12:59,473 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-09-08 01:12:59,473 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-08 01:12:59,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float
[2019-09-08 01:12:59,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-09-08 01:12:59,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-09-08 01:12:59,474 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-09-08 01:12:59,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2019-09-08 01:12:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real
[2019-09-08 01:12:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2019-09-08 01:12:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2019-09-08 01:12:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-08 01:12:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-08 01:12:59,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2019-09-08 01:12:59,771 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-08 01:12:59,771 INFO L283 CfgBuilder]: Removed 0 assume(true) statements.
[2019-09-08 01:12:59,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:12:59 BoogieIcfgContainer
[2019-09-08 01:12:59,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-08 01:12:59,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-08 01:12:59,775 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-09-08 01:12:59,779 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-09-08 01:12:59,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:12:58" (1/3) ...
[2019-09-08 01:12:59,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bcddfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:12:59, skipping insertion in model container
[2019-09-08 01:12:59,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:12:59" (2/3) ...
[2019-09-08 01:12:59,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32bcddfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:12:59, skipping insertion in model container
[2019-09-08 01:12:59,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:12:59" (3/3) ...
[2019-09-08 01:12:59,784 INFO L109 eAbstractionObserver]: Analyzing ICFG interpolation2.c.v+cfa-reducer.c
[2019-09-08 01:12:59,813 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-08 01:12:59,823 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-08 01:12:59,850 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-08 01:12:59,876 INFO L128 ementStrategyFactory]: Using default assertion order modulation
[2019-09-08 01:12:59,877 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2019-09-08 01:12:59,877 INFO L378 AbstractCegarLoop]: Hoare is true
[2019-09-08 01:12:59,877 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-08 01:12:59,877 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-08 01:12:59,877 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-08 01:12:59,877 INFO L382 AbstractCegarLoop]: Difference is false
[2019-09-08 01:12:59,877 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-08 01:12:59,877 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-08 01:12:59,892 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states.
[2019-09-08 01:12:59,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2019-09-08 01:12:59,897 INFO L391 BasicCegarLoop]: Found error trace
[2019-09-08 01:12:59,898 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-08 01:12:59,900 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 01:12:59,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 01:12:59,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1189108249, now seen corresponding path program 1 times
[2019-09-08 01:12:59,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 01:12:59,907 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 01:12:59,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:12:59,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 01:12:59,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:13:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 01:13:00,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-08 01:13:00,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-08 01:13:00,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2019-09-08 01:13:00,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states
[2019-09-08 01:13:00,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2019-09-08 01:13:00,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2019-09-08 01:13:00,147 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states.
[2019-09-08 01:13:00,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-08 01:13:00,256 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions.
[2019-09-08 01:13:00,256 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2019-09-08 01:13:00,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16
[2019-09-08 01:13:00,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-08 01:13:00,270 INFO L225 Difference]: With dead ends: 35
[2019-09-08 01:13:00,271 INFO L226 Difference]: Without dead ends: 19
[2019-09-08 01:13:00,275 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2019-09-08 01:13:00,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2019-09-08 01:13:00,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2019-09-08 01:13:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states.
[2019-09-08 01:13:00,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions.
[2019-09-08 01:13:00,315 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 16
[2019-09-08 01:13:00,316 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-09-08 01:13:00,316 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions.
[2019-09-08 01:13:00,317 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states.
[2019-09-08 01:13:00,317 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions.
[2019-09-08 01:13:00,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2019-09-08 01:13:00,318 INFO L391 BasicCegarLoop]: Found error trace
[2019-09-08 01:13:00,318 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-08 01:13:00,319 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 01:13:00,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 01:13:00,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1204212286, now seen corresponding path program 1 times
[2019-09-08 01:13:00,319 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 01:13:00,320 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 01:13:00,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:13:00,321 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 01:13:00,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:13:00,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 01:13:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2019-09-08 01:13:00,416 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-08 01:13:00,416 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-08 01:13:00,419 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-08 01:13:00,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-08 01:13:00,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-08 01:13:00,420 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states.
[2019-09-08 01:13:00,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-08 01:13:00,445 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions.
[2019-09-08 01:13:00,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-09-08 01:13:00,445 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16
[2019-09-08 01:13:00,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-08 01:13:00,447 INFO L225 Difference]: With dead ends: 37
[2019-09-08 01:13:00,447 INFO L226 Difference]: Without dead ends: 29
[2019-09-08 01:13:00,448 INFO L628 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
[2019-09-08 01:13:00,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states.
[2019-09-08 01:13:00,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 20.
[2019-09-08 01:13:00,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states.
[2019-09-08 01:13:00,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions.
[2019-09-08 01:13:00,457 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 16
[2019-09-08 01:13:00,458 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-09-08 01:13:00,458 INFO L475 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions.
[2019-09-08 01:13:00,458 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-08 01:13:00,459 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions.
[2019-09-08 01:13:00,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2019-09-08 01:13:00,460 INFO L391 BasicCegarLoop]: Found error trace
[2019-09-08 01:13:00,460 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2019-09-08 01:13:00,460 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 01:13:00,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 01:13:00,461 INFO L82 PathProgramCache]: Analyzing trace with hash -900055575, now seen corresponding path program 1 times
[2019-09-08 01:13:00,461 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 01:13:00,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 01:13:00,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:13:00,464 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 01:13:00,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:13:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-09-08 01:13:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-09-08 01:13:00,606 INFO L466 BasicCegarLoop]: Counterexample might be feasible
[2019-09-08 01:13:00,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:13:00 BoogieIcfgContainer
[2019-09-08 01:13:00,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-09-08 01:13:00,647 INFO L168 Benchmark]: Toolchain (without parser) took 1636.47 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 86.7 MB in the beginning and 118.7 MB in the end (delta: -32.1 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB.
[2019-09-08 01:13:00,648 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
[2019-09-08 01:13:00,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.96 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 86.5 MB in the beginning and 178.4 MB in the end (delta: -92.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB.
[2019-09-08 01:13:00,650 INFO L168 Benchmark]: Boogie Preprocessor took 41.67 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 175.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB.
[2019-09-08 01:13:00,650 INFO L168 Benchmark]: RCFGBuilder took 350.64 ms. Allocated memory is still 201.3 MB. Free memory was 175.8 MB in the beginning and 158.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB.
[2019-09-08 01:13:00,651 INFO L168 Benchmark]: TraceAbstraction took 869.78 ms. Allocated memory is still 201.3 MB. Free memory was 158.9 MB in the beginning and 118.7 MB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB.
[2019-09-08 01:13:00,655 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.43 ms. Allocated memory is still 141.0 MB. Free memory was 105.8 MB in the beginning and 105.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 369.96 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 86.5 MB in the beginning and 178.4 MB in the end (delta: -92.0 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 41.67 ms. Allocated memory is still 201.3 MB. Free memory was 178.4 MB in the beginning and 175.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 350.64 ms. Allocated memory is still 201.3 MB. Free memory was 175.8 MB in the beginning and 158.9 MB in the end (delta: 16.9 MB). Peak memory consumption was 16.9 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 869.78 ms. Allocated memory is still 201.3 MB. Free memory was 158.9 MB in the beginning and 118.7 MB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 48]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someBinaryFLOATComparisonOperation at line 30, overapproximation of someBinaryDOUBLEComparisonOperation at line 35, overapproximation of to_real at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 33.
Possible FailurePath:
[L1] int __return_main;
[L7] int __return_129;
VAL [\old(__return_129)=24, \old(__return_main)=25, __return_129=0, __return_main=0]
[L10] int main__i;
[L11] float main__z;
[L12] float main__t;
[L13] float main__min[5] = { 5, 10, 12, 30, 150 };
[L14] float main__max[5] = { 10, 12, 30, 150, 300 };
[L15] float main__org[5] = { 1, 5, -10, 30, 20 };
[L16] float main__slope[5] = { 4, -15, 40, -10, 0 };
[L17] main__t = __VERIFIER_nondet_float()
[L18] int main____CPAchecker_TMP_0;
[L19] EXPR main__min[0]
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, main__max={1:0}, main__min={-2:0}, main__min[0]=23, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L19] COND TRUE main__t >= (main__min[0])
[L21] EXPR main__max[4UL]
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, main__max={1:0}, main__max[4UL]=27, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L21] COND TRUE main__t <= (main__max[4UL])
[L23] main____CPAchecker_TMP_0 = 1
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={1:0}, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L24] COND TRUE main____CPAchecker_TMP_0 != 0
[L26] main__i = 0
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={1:0}, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L28] COND TRUE main__i < 5UL
[L30] EXPR main__max[main__i]
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={1:0}, main__max[main__i]=22, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L30] COND TRUE main__t <= (main__max[main__i])
[L33] EXPR main__org[main__i]
[L33] EXPR main__slope[main__i]
[L33] EXPR main__min[main__i]
[L33] EXPR main__max[main__i]
[L33] EXPR main__min[main__i]
[L33] main__z = (main__org[main__i]) + (((main__slope[main__i]) * (main__t - (main__min[main__i]))) / ((main__max[main__i]) - (main__min[main__i])))
[L34] int main____CPAchecker_TMP_1;
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={1:0}, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L35] COND FALSE !(main__z >= -10.0)
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={1:0}, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L61] main____CPAchecker_TMP_1 = 0
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={1:0}, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L42] int __tmp_1;
[L43] __tmp_1 = main____CPAchecker_TMP_1
[L44] int __VERIFIER_assert__cond;
[L45] __VERIFIER_assert__cond = __tmp_1
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={1:0}, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L46] COND TRUE __VERIFIER_assert__cond == 0
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={1:0}, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
[L48] __VERIFIER_error()
VAL [\old(__return_129)=0, __return_129=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={1:0}, main__min={-2:0}, main__org={2:0}, main__slope={-1:0}, main__t=26]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 23 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 35 SDslu, 78 SDs, 0 SdLazy, 17 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 600 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces
Received shutdown request...