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/filter1.c.p+cfa-reducer.c
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This is Ultimate 0.1.24-112bae1
[2019-09-08 01:10:49,546 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2019-09-08 01:10:49,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2019-09-08 01:10:49,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2019-09-08 01:10:49,566 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
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[2019-09-08 01:10:49,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
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[2019-09-08 01:10:49,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2019-09-08 01:10:49,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
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[2019-09-08 01:10:49,614 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 01:10:49,642 INFO L113 SettingsManager]: Loading preferences was successful
[2019-09-08 01:10:49,643 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2019-09-08 01:10:49,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2019-09-08 01:10:49,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2019-09-08 01:10:49,646 INFO L138 SettingsManager]: * Use SBE=true
[2019-09-08 01:10:49,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2019-09-08 01:10:49,646 INFO L138 SettingsManager]: * sizeof long=4
[2019-09-08 01:10:49,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2019-09-08 01:10:49,647 INFO L138 SettingsManager]: * sizeof POINTER=4
[2019-09-08 01:10:49,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2019-09-08 01:10:49,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2019-09-08 01:10:49,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2019-09-08 01:10:49,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2019-09-08 01:10:49,649 INFO L138 SettingsManager]: * sizeof long double=12
[2019-09-08 01:10:49,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2019-09-08 01:10:49,650 INFO L138 SettingsManager]: * Use constant arrays=true
[2019-09-08 01:10:49,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2019-09-08 01:10:49,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2019-09-08 01:10:49,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2019-09-08 01:10:49,650 INFO L138 SettingsManager]: * To the following directory=./dump/
[2019-09-08 01:10:49,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2019-09-08 01:10:49,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2019-09-08 01:10:49,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2019-09-08 01:10:49,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2019-09-08 01:10:49,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2019-09-08 01:10:49,652 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2019-09-08 01:10:49,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2019-09-08 01:10:49,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2019-09-08 01:10:49,653 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2019-09-08 01:10:49,711 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp
[2019-09-08 01:10:49,733 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2019-09-08 01:10:49,737 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2019-09-08 01:10:49,738 INFO L271 PluginConnector]: Initializing CDTParser...
[2019-09-08 01:10:49,739 INFO L275 PluginConnector]: CDTParser initialized
[2019-09-08 01:10:49,739 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/filter1.c.p+cfa-reducer.c
[2019-09-08 01:10:49,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/425401408/50dcdf724ec748c786c0041302fffe57/FLAG54fb56332
[2019-09-08 01:10:50,273 INFO L306 CDTParser]: Found 1 translation units.
[2019-09-08 01:10:50,275 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/filter1.c.p+cfa-reducer.c
[2019-09-08 01:10:50,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/425401408/50dcdf724ec748c786c0041302fffe57/FLAG54fb56332
[2019-09-08 01:10:50,646 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/425401408/50dcdf724ec748c786c0041302fffe57
[2019-09-08 01:10:50,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2019-09-08 01:10:50,657 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2019-09-08 01:10:50,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2019-09-08 01:10:50,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2019-09-08 01:10:50,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2019-09-08 01:10:50,664 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:10:50" (1/1) ...
[2019-09-08 01:10:50,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d26bdcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:50, skipping insertion in model container
[2019-09-08 01:10:50,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 01:10:50" (1/1) ...
[2019-09-08 01:10:50,675 INFO L142 MainTranslator]: Starting translation in SV-COMP mode
[2019-09-08 01:10:50,696 INFO L173 MainTranslator]: Built tables and reachable declarations
[2019-09-08 01:10:50,915 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-09-08 01:10:50,926 INFO L188 MainTranslator]: Completed pre-run
[2019-09-08 01:10:50,948 INFO L206 PostProcessor]: Analyzing one entry point: main
[2019-09-08 01:10:51,068 INFO L192 MainTranslator]: Completed translation
[2019-09-08 01:10:51,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51 WrapperNode
[2019-09-08 01:10:51,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2019-09-08 01:10:51,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2019-09-08 01:10:51,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2019-09-08 01:10:51,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2019-09-08 01:10:51,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (1/1) ...
[2019-09-08 01:10:51,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (1/1) ...
[2019-09-08 01:10:51,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (1/1) ...
[2019-09-08 01:10:51,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (1/1) ...
[2019-09-08 01:10:51,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (1/1) ...
[2019-09-08 01:10:51,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (1/1) ...
[2019-09-08 01:10:51,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (1/1) ...
[2019-09-08 01:10:51,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2019-09-08 01:10:51,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2019-09-08 01:10:51,103 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2019-09-08 01:10:51,103 INFO L275 PluginConnector]: RCFGBuilder initialized
[2019-09-08 01:10:51,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (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 01:10:51,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2019-09-08 01:10:51,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2019-09-08 01:10:51,162 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2019-09-08 01:10:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error
[2019-09-08 01:10:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2019-09-08 01:10:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double
[2019-09-08 01:10:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume
[2019-09-08 01:10:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2019-09-08 01:10:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2019-09-08 01:10:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2019-09-08 01:10:51,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2019-09-08 01:10:51,502 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2019-09-08 01:10:51,503 INFO L283 CfgBuilder]: Removed 0 assume(true) statements.
[2019-09-08 01:10:51,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:10:51 BoogieIcfgContainer
[2019-09-08 01:10:51,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2019-09-08 01:10:51,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2019-09-08 01:10:51,508 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2019-09-08 01:10:51,513 INFO L275 PluginConnector]: TraceAbstraction initialized
[2019-09-08 01:10:51,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 01:10:50" (1/3) ...
[2019-09-08 01:10:51,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19beb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:10:51, skipping insertion in model container
[2019-09-08 01:10:51,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 01:10:51" (2/3) ...
[2019-09-08 01:10:51,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19beb95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 01:10:51, skipping insertion in model container
[2019-09-08 01:10:51,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 01:10:51" (3/3) ...
[2019-09-08 01:10:51,521 INFO L109 eAbstractionObserver]: Analyzing ICFG filter1.c.p+cfa-reducer.c
[2019-09-08 01:10:51,530 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2019-09-08 01:10:51,539 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2019-09-08 01:10:51,557 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2019-09-08 01:10:51,603 INFO L128 ementStrategyFactory]: Using default assertion order modulation
[2019-09-08 01:10:51,604 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2019-09-08 01:10:51,605 INFO L378 AbstractCegarLoop]: Hoare is true
[2019-09-08 01:10:51,606 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP
[2019-09-08 01:10:51,606 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2019-09-08 01:10:51,606 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2019-09-08 01:10:51,606 INFO L382 AbstractCegarLoop]: Difference is false
[2019-09-08 01:10:51,607 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2019-09-08 01:10:51,607 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2019-09-08 01:10:51,625 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states.
[2019-09-08 01:10:51,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2019-09-08 01:10:51,630 INFO L391 BasicCegarLoop]: Found error trace
[2019-09-08 01:10:51,631 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 01:10:51,633 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 01:10:51,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 01:10:51,638 INFO L82 PathProgramCache]: Analyzing trace with hash 604588517, now seen corresponding path program 1 times
[2019-09-08 01:10:51,640 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 01:10:51,640 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 01:10:51,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:10:51,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 01:10:51,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:10:51,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 01:10:51,795 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 01:10:51,798 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-08 01:10:51,798 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2019-09-08 01:10:51,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states
[2019-09-08 01:10:51,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2019-09-08 01:10:51,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2019-09-08 01:10:51,816 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states.
[2019-09-08 01:10:51,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-08 01:10:51,865 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions.
[2019-09-08 01:10:51,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2019-09-08 01:10:51,867 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17
[2019-09-08 01:10:51,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-08 01:10:51,877 INFO L225 Difference]: With dead ends: 45
[2019-09-08 01:10:51,877 INFO L226 Difference]: Without dead ends: 19
[2019-09-08 01:10:51,881 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 01:10:51,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states.
[2019-09-08 01:10:51,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19.
[2019-09-08 01:10:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states.
[2019-09-08 01:10:51,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions.
[2019-09-08 01:10:51,919 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 17
[2019-09-08 01:10:51,920 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-09-08 01:10:51,920 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions.
[2019-09-08 01:10:51,920 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states.
[2019-09-08 01:10:51,920 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions.
[2019-09-08 01:10:51,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2019-09-08 01:10:51,921 INFO L391 BasicCegarLoop]: Found error trace
[2019-09-08 01:10:51,921 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 01:10:51,922 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 01:10:51,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 01:10:51,922 INFO L82 PathProgramCache]: Analyzing trace with hash 715558858, now seen corresponding path program 1 times
[2019-09-08 01:10:51,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 01:10:51,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 01:10:51,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:10:51,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 01:10:51,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:10:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2019-09-08 01:10:51,996 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 01:10:51,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2019-09-08 01:10:51,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2019-09-08 01:10:51,999 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states
[2019-09-08 01:10:51,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2019-09-08 01:10:52,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2019-09-08 01:10:52,000 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 4 states.
[2019-09-08 01:10:52,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2019-09-08 01:10:52,072 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions.
[2019-09-08 01:10:52,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2019-09-08 01:10:52,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17
[2019-09-08 01:10:52,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2019-09-08 01:10:52,074 INFO L225 Difference]: With dead ends: 34
[2019-09-08 01:10:52,074 INFO L226 Difference]: Without dead ends: 32
[2019-09-08 01:10:52,075 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2019-09-08 01:10:52,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states.
[2019-09-08 01:10:52,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 21.
[2019-09-08 01:10:52,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states.
[2019-09-08 01:10:52,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions.
[2019-09-08 01:10:52,083 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17
[2019-09-08 01:10:52,083 INFO L84 Accepts]: Finished accepts. word is rejected.
[2019-09-08 01:10:52,083 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions.
[2019-09-08 01:10:52,083 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states.
[2019-09-08 01:10:52,084 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions.
[2019-09-08 01:10:52,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2019-09-08 01:10:52,084 INFO L391 BasicCegarLoop]: Found error trace
[2019-09-08 01:10:52,085 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 01:10:52,085 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2019-09-08 01:10:52,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2019-09-08 01:10:52,086 INFO L82 PathProgramCache]: Analyzing trace with hash 731616207, now seen corresponding path program 1 times
[2019-09-08 01:10:52,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS
[2019-09-08 01:10:52,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy
[2019-09-08 01:10:52,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:10:52,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2019-09-08 01:10:52,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY
[2019-09-08 01:10:52,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-09-08 01:10:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2019-09-08 01:10:52,130 INFO L466 BasicCegarLoop]: Counterexample might be feasible
[2019-09-08 01:10:52,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 01:10:52 BoogieIcfgContainer
[2019-09-08 01:10:52,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2019-09-08 01:10:52,160 INFO L168 Benchmark]: Toolchain (without parser) took 1501.97 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 93.0 MB in the beginning and 132.4 MB in the end (delta: -39.4 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB.
[2019-09-08 01:10:52,161 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 111.2 MB in the beginning and 111.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB.
[2019-09-08 01:10:52,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.99 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 92.8 MB in the beginning and 179.1 MB in the end (delta: -86.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
[2019-09-08 01:10:52,163 INFO L168 Benchmark]: Boogie Preprocessor took 32.99 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 177.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
[2019-09-08 01:10:52,163 INFO L168 Benchmark]: RCFGBuilder took 404.47 ms. Allocated memory is still 201.3 MB. Free memory was 177.0 MB in the beginning and 164.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB.
[2019-09-08 01:10:52,164 INFO L168 Benchmark]: TraceAbstraction took 648.60 ms. Allocated memory is still 201.3 MB. Free memory was 163.8 MB in the beginning and 132.4 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB.
[2019-09-08 01:10:52,168 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 136.8 MB. Free memory was 111.2 MB in the beginning and 111.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB.
* CACSL2BoogieTranslator took 410.99 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 92.8 MB in the beginning and 179.1 MB in the end (delta: -86.3 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB.
* Boogie Preprocessor took 32.99 ms. Allocated memory is still 201.3 MB. Free memory was 179.1 MB in the beginning and 177.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB.
* RCFGBuilder took 404.47 ms. Allocated memory is still 201.3 MB. Free memory was 177.0 MB in the beginning and 164.3 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB.
* TraceAbstraction took 648.60 ms. Allocated memory is still 201.3 MB. Free memory was 163.8 MB in the beginning and 132.4 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 51]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() unreachable
Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 34.
Possible FailurePath:
[L1] int __return_main;
VAL [\old(__return_main)=2, __return_main=0]
[L10] double main__E0;
[L11] double main__E1;
[L12] double main__S;
[L13] int main__i;
[L14] main__E1 = 0
[L15] main__S = 0
[L16] main__i = 0
VAL [__return_main=0, main__i=0]
[L18] COND TRUE main__i <= 1000000
[L20] main__E0 = __VERIFIER_nondet_double()
[L21] int main____CPAchecker_TMP_0;
VAL [__return_main=0, main__E0=3, main__i=0]
[L22] COND TRUE main__E0 >= -1.0
VAL [__return_main=0, main__E0=3, main__i=0]
[L24] COND TRUE main__E0 <= 1.0
[L26] main____CPAchecker_TMP_0 = 1
VAL [__return_main=0, main____CPAchecker_TMP_0=1, main__E0=3, main__i=0]
[L28] COND TRUE main____CPAchecker_TMP_0 != 0
[L30] int main____CPAchecker_TMP_1;
[L31] main____CPAchecker_TMP_1 = __VERIFIER_nondet_int()
[L32] COND TRUE !(main____CPAchecker_TMP_1 == 0)
[L34] main__S = 0
VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__E0=3, main__i=0]
[L36] main__E1 = main__E0
[L37] int main____CPAchecker_TMP_2;
VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__E0=3, main__E1=3, main__i=0]
[L38] COND FALSE !(main__S >= -10000.0)
VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__E0=3, main__E1=3, main__i=0]
[L64] main____CPAchecker_TMP_2 = 0
VAL [__return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__E0=3, main__E1=3, main__i=0]
[L45] int __tmp_1;
[L46] __tmp_1 = main____CPAchecker_TMP_2
[L47] int __VERIFIER_assert__cond;
[L48] __VERIFIER_assert__cond = __tmp_1
VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__E0=3, main__E1=3, main__i=0]
[L49] COND TRUE __VERIFIER_assert__cond == 0
VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__E0=3, main__E1=3, main__i=0]
[L51] __VERIFIER_error()
VAL [__return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__E0=3, main__E1=3, main__i=0]
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 3 procedures, 24 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 63 SDtfs, 23 SDslu, 66 SDs, 0 SdLazy, 17 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 608 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...