java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/inv_square_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 15:45:51,243 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 15:45:51,246 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 15:45:51,258 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 15:45:51,258 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 15:45:51,259 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 15:45:51,261 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 15:45:51,263 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 15:45:51,265 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 15:45:51,266 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 15:45:51,266 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 15:45:51,267 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 15:45:51,268 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 15:45:51,269 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 15:45:51,270 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 15:45:51,271 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 15:45:51,272 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 15:45:51,274 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 15:45:51,276 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 15:45:51,278 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 15:45:51,279 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 15:45:51,280 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 15:45:51,283 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 15:45:51,290 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 15:45:51,291 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 15:45:51,292 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 15:45:51,293 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 15:45:51,293 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 15:45:51,318 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 15:45:51,318 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 15:45:51,319 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 15:45:51,319 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 15:45:51,323 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 15:45:51,323 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 15:45:51,324 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 15:45:51,324 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 15:45:51,324 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 15:45:51,324 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 15:45:51,325 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 15:45:51,325 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 15:45:51,325 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 15:45:51,325 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 15:45:51,329 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 15:45:51,329 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 15:45:51,329 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 15:45:51,329 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 15:45:51,330 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 15:45:51,330 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 15:45:51,330 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 15:45:51,330 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 15:45:51,332 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 15:45:51,332 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 15:45:51,333 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 15:45:51,333 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 15:45:51,333 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 15:45:51,333 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 15:45:51,334 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 15:45:51,334 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 15:45:51,334 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 15:45:51,334 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 15:45:51,379 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 15:45:51,393 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 15:45:51,397 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 15:45:51,398 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 15:45:51,399 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 15:45:51,400 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_square_true-unreach-call_true-termination.c [2018-09-19 15:45:51,779 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b223445b9/4415e2706bdf4cc7a7895d5a2ced5d22/FLAG0c8e64ac9 [2018-09-19 15:45:51,917 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 15:45:51,917 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_square_true-unreach-call_true-termination.c [2018-09-19 15:45:51,924 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b223445b9/4415e2706bdf4cc7a7895d5a2ced5d22/FLAG0c8e64ac9 [2018-09-19 15:45:51,941 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b223445b9/4415e2706bdf4cc7a7895d5a2ced5d22 [2018-09-19 15:45:51,954 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 15:45:51,957 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 15:45:51,959 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 15:45:51,959 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 15:45:51,972 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 15:45:51,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:45:51" (1/1) ... [2018-09-19 15:45:51,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@462c0b2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:51, skipping insertion in model container [2018-09-19 15:45:51,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:45:51" (1/1) ... [2018-09-19 15:45:51,987 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 15:45:52,240 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:45:52,269 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 15:45:52,281 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:45:52,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52 WrapperNode [2018-09-19 15:45:52,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 15:45:52,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 15:45:52,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 15:45:52,303 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 15:45:52,321 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (1/1) ... [2018-09-19 15:45:52,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (1/1) ... [2018-09-19 15:45:52,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (1/1) ... [2018-09-19 15:45:52,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (1/1) ... [2018-09-19 15:45:52,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (1/1) ... [2018-09-19 15:45:52,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (1/1) ... [2018-09-19 15:45:52,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (1/1) ... [2018-09-19 15:45:52,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 15:45:52,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 15:45:52,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 15:45:52,349 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 15:45:52,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (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 [2018-09-19 15:45:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 15:45:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 15:45:52,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 15:45:52,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 15:45:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 15:45:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 15:45:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-19 15:45:52,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 15:45:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 15:45:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 15:45:52,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 15:45:53,664 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 15:45:53,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:45:53 BoogieIcfgContainer [2018-09-19 15:45:53,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 15:45:53,666 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 15:45:53,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 15:45:53,669 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 15:45:53,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:45:51" (1/3) ... [2018-09-19 15:45:53,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36aab1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:45:53, skipping insertion in model container [2018-09-19 15:45:53,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:45:52" (2/3) ... [2018-09-19 15:45:53,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36aab1c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:45:53, skipping insertion in model container [2018-09-19 15:45:53,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:45:53" (3/3) ... [2018-09-19 15:45:53,673 INFO L112 eAbstractionObserver]: Analyzing ICFG inv_square_true-unreach-call_true-termination.c [2018-09-19 15:45:53,681 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 15:45:53,690 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 15:45:53,744 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 15:45:53,745 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 15:45:53,745 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 15:45:53,746 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 15:45:53,746 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 15:45:53,746 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 15:45:53,746 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 15:45:53,747 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 15:45:53,747 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 15:45:53,767 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-09-19 15:45:53,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 15:45:53,774 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:45:53,775 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:45:53,778 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:45:53,785 INFO L82 PathProgramCache]: Analyzing trace with hash 697060158, now seen corresponding path program 1 times [2018-09-19 15:45:53,791 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:45:53,792 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 15:45:53,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 15:45:54,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:45:54,062 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:46:09,220 WARN L178 SmtUtils]: Spent 10.12 s on a formula simplification that was a NOOP. DAG size: 25 [2018-09-19 15:46:16,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:46:16,541 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 15:46:16,555 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 15:46:16,556 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 15:46:16,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 15:46:16,578 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 15:46:16,578 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=18, Unknown=3, NotChecked=0, Total=30 [2018-09-19 15:46:16,581 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 6 states. [2018-09-19 15:46:37,898 WARN L178 SmtUtils]: Spent 16.32 s on a formula simplification that was a NOOP. DAG size: 26 [2018-09-19 15:46:51,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:46:51,116 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-09-19 15:46:51,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 15:46:51,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-09-19 15:46:51,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:46:51,193 INFO L225 Difference]: With dead ends: 30 [2018-09-19 15:46:51,193 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 15:46:51,196 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.7s TimeCoverageRelationStatistics Valid=17, Invalid=36, Unknown=3, NotChecked=0, Total=56 [2018-09-19 15:46:51,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 15:46:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 15:46:51,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 15:46:51,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 15:46:51,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-09-19 15:46:51,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:46:51,223 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 15:46:51,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 15:46:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 15:46:51,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 15:46:51,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 15:47:05,654 WARN L178 SmtUtils]: Spent 14.35 s on a formula simplification that was a NOOP. DAG size: 26 [2018-09-19 15:47:05,657 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-19 15:47:05,657 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-19 15:47:05,657 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-19 15:47:05,657 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-19 15:47:05,658 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-19 15:47:05,658 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-19 15:47:05,658 INFO L426 ceAbstractionStarter]: For program point L17(lines 17 21) no Hoare annotation was computed. [2018-09-19 15:47:05,658 INFO L426 ceAbstractionStarter]: For program point L17-2(lines 17 21) no Hoare annotation was computed. [2018-09-19 15:47:05,658 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 10 23) the Hoare annotation is: true [2018-09-19 15:47:05,659 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 10 23) no Hoare annotation was computed. [2018-09-19 15:47:05,659 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 10 23) no Hoare annotation was computed. [2018-09-19 15:47:05,660 INFO L422 ceAbstractionStarter]: At program point L19(line 19) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) RNE 1.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (fp.neg .cse0)) (or (exists ((v_prenex_1 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) RNE 1.0))) (and (= (fp.mul RNE v_prenex_1 v_prenex_1) main_~y~0) (fp.leq v_prenex_1 .cse1) (fp.geq v_prenex_1 (fp.neg .cse1)) (fp.leq v_prenex_1 (fp.neg ((_ to_fp 8 24) RNE (/ 1.0 100000000000000000000.0))))))) (exists ((main_~x~0 (_ FloatingPoint 8 24))) (let ((.cse2 ((_ to_fp 8 24) RNE 1.0))) (and (fp.leq main_~x~0 .cse2) (fp.geq main_~x~0 (fp.neg .cse2)) (fp.geq main_~x~0 ((_ to_fp 8 24) RNE (/ 1.0 100000000000000000000.0))) (= (fp.mul RNE main_~x~0 main_~x~0) main_~y~0))))))) [2018-09-19 15:47:05,660 INFO L426 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-09-19 15:47:05,660 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 8) the Hoare annotation is: true [2018-09-19 15:47:05,661 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 8) no Hoare annotation was computed. [2018-09-19 15:47:05,661 INFO L426 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-09-19 15:47:05,661 INFO L426 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-09-19 15:47:05,661 INFO L426 ceAbstractionStarter]: For program point L8-3(line 8) no Hoare annotation was computed. [2018-09-19 15:47:05,661 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-09-19 15:47:05,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:47:05 BoogieIcfgContainer [2018-09-19 15:47:05,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 15:47:05,669 INFO L168 Benchmark]: Toolchain (without parser) took 73714.26 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 670.0 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -662.2 MB). Peak memory consumption was 7.8 MB. Max. memory is 7.1 GB. [2018-09-19 15:47:05,670 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 15:47:05,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 15:47:05,672 INFO L168 Benchmark]: Boogie Preprocessor took 44.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 15:47:05,672 INFO L168 Benchmark]: RCFGBuilder took 1316.91 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 670.0 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -714.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-09-19 15:47:05,674 INFO L168 Benchmark]: TraceAbstraction took 72001.68 ms. Allocated memory is still 2.1 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2018-09-19 15:47:05,680 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 343.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.89 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 1316.91 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 670.0 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -714.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 72001.68 ms. Allocated memory is still 2.1 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 41.6 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 71.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 34.6s AutomataDifference, 0.0s DeadEndRemovalTime, 14.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 9 SDslu, 39 SDs, 0 SdLazy, 16 SolverSat, 2 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 13.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 42.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 67 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 14.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 22.4s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 1 QuantifiedInterpolants, 693 SizeOfPredicates, 3 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...